{"id":19905,"date":"2021-12-17T13:17:10","date_gmt":"2021-12-17T06:17:10","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=19905"},"modified":"2021-12-17T13:17:12","modified_gmt":"2021-12-17T06:17:12","slug":"dau-cua-nhi-thuc-bac-nhat","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/dau-cua-nhi-thuc-bac-nhat\/","title":{"rendered":"D\u1ea4U C\u1ee6A NH\u1eca TH\u1ee8C B\u1eacC NH\u1ea4T"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<p><strong>I \u2013 LY\u0301 THUY\u00ca\u0301T<\/strong><\/p>\n<p><strong>1. Nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t<\/strong><\/p>\n<p>Nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t \u0111\u1ed1i v\u1edbi <img decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19906\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_256-9.png\" alt=\"IMG_256\" \/> l\u00e0 bi\u1ec3u th\u1ee9c d\u1ea1ng <img decoding=\"async\" width=\"116\" height=\"34\" class=\"wp-image-19907\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_257-8.png\" alt=\"IMG_257\" \/> trong \u0111\u00f3 <img decoding=\"async\" width=\"34\" height=\"28\" class=\"wp-image-19908\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_258-9.png\" alt=\"IMG_258\" \/> l\u00e0 hai s\u1ed1 \u0111\u00e3 cho, <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-19909\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_259-8.png\" alt=\"IMG_259\" \/> .<\/p>\n<p><strong>2. D\u1ea5u c\u1ee7a nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t<\/strong><\/p>\n<p><strong>\u0110\u1ecbnh l\u00ed. <\/strong>Nh\u1ecb th\u1ee9c <img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"34\" class=\"wp-image-19910\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_260-9.png\" alt=\"IMG_260\" \/> c\u00f3 gi\u00e1 tr\u1ecb c\u00f9ng d\u1ea5u v\u1edbi h\u1ec7 s\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19911\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_261-6.png\" alt=\"IMG_261\" \/> khi <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19912\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_262-7.png\" alt=\"IMG_262\" \/> l\u1ea5y c\u00e1c gi\u00e1 tr\u1ecb trong kho\u1ea3ng <img loading=\"lazy\" decoding=\"async\" width=\"99\" height=\"57\" class=\"wp-image-19913\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_263-8.png\" alt=\"IMG_263\" \/> tr\u00e1i d\u1ea5u v\u1edbi h\u1ec7 s\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19914\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_264-7.png\" alt=\"IMG_264\" \/> khi <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19915\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_265-7.png\" alt=\"IMG_265\" \/> l\u1ea5y gi\u00e1 tr\u1ecb trong kho\u1ea3ng <img loading=\"lazy\" decoding=\"async\" width=\"93\" height=\"57\" class=\"wp-image-19916\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_266-7.png\" alt=\"IMG_266\" \/><\/p>\n<p>a. S\u01b0\u0309 du\u0323ng ba\u0309ng xe\u0301t d\u00e2\u0301u (pha\u0309i cu\u0300ng \u2013 tra\u0301i tra\u0301i: v\u01a1\u0301i h\u00ea\u0323 s\u00f4\u0301 a)<\/p>\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\">\n<p><em><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19917\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_267-8.png\" alt=\"IMG_267\" \/><\/em><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"17\" class=\"wp-image-19918\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_268-8.png\" alt=\"IMG_268\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"52\" class=\"wp-image-19919\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_269-8.png\" alt=\"IMG_269\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"19\" class=\"wp-image-19920\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_270-6.png\" alt=\"IMG_270\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"34\" class=\"wp-image-19921\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_271-8.png\" alt=\"IMG_271\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-19922\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_272-8.png\" alt=\"IMG_272\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-19923\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_273-7.png\" alt=\"IMG_273\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-19924\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_274-8.png\" alt=\"IMG_274\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-19925\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_275-7.png\" alt=\"IMG_275\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-19926\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_276-8.png\" alt=\"IMG_276\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-19927\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_277-8.png\" alt=\"IMG_277\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-19928\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_278-8.png\" alt=\"IMG_278\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-19929\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_279-6.png\" alt=\"IMG_279\" \/><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<p>b. S\u01b0\u0309 du\u0323ng tru\u0323c s\u00f4\u0301<\/p>\n<p>\u25cf N\u00ea\u0301u <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-19930\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_280-8.png\" alt=\"IMG_280\" \/> thi\u0300 :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"417\" height=\"105\" class=\"wp-image-19931\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_281.jpeg\" alt=\"IMG_281\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_281.jpeg 417w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_281-300x76.jpeg 300w\" sizes=\"(max-width: 417px) 100vw, 417px\" \/><\/p>\n<p>\u25cf N\u00ea\u0301u <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-19932\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_282-8.png\" alt=\"IMG_282\" \/> thi\u0300 :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"449\" height=\"101\" class=\"wp-image-19933\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_283.jpeg\" alt=\"IMG_283\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283.jpeg 449w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283-300x67.jpeg 300w\" sizes=\"(max-width: 449px) 100vw, 449px\" \/><\/p>\n<p>\u25cf Minh h\u1ecda b\u1eb1ng \u0111\u1ed3 th\u1ecb<\/p>\n<p>\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"164\" class=\"wp-image-19934\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_284.jpeg\" alt=\"IMG_284\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_284.jpeg 622w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_284-300x79.jpeg 300w\" sizes=\"(max-width: 622px) 100vw, 622px\" \/><\/p>\n<p><strong>3. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng.<\/strong><\/p>\n<p><strong>a) B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh t\u00edch<\/strong><\/p>\n<p>\u00b7 D\u1ea1ng: <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"34\" class=\"wp-image-19935\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_285-8.png\" alt=\"IMG_285\" \/> (1) (trong \u0111\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"49\" height=\"34\" class=\"wp-image-19936\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_286-7.png\" alt=\"IMG_286\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"49\" height=\"34\" class=\"wp-image-19937\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_287-8.png\" alt=\"IMG_287\" \/> l\u00e0 nh\u1eefng nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t.)<\/p>\n<p>\u00b7 C\u00e1ch gi\u1ea3i: L\u1eadp b\u1ea3ng x\u00e9t d\u1ea5u c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"98\" height=\"34\" class=\"wp-image-19938\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_288-8.png\" alt=\"IMG_288\" \/> . T\u1eeb \u0111\u00f3 suy ra t\u1eadp nghi\u1ec7m c\u1ee7a (1).<\/p>\n<p><strong>b) B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n \u1edf m\u1eabu<\/strong><\/p>\n<p>\u00b7 D\u1ea1ng: <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"55\" class=\"wp-image-19939\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_289-9.png\" alt=\"IMG_289\" \/> (2) (trong \u0111\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"49\" height=\"34\" class=\"wp-image-19940\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_290-8.png\" alt=\"IMG_290\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"49\" height=\"34\" class=\"wp-image-19941\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_291-8.png\" alt=\"IMG_291\" \/> l\u00e0 nh\u1eefng nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t.)<\/p>\n<p>\u00b7 C\u00e1ch gi\u1ea3i: L\u1eadp b\u1ea3ng x\u00e9t d\u1ea5u c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"49\" height=\"55\" class=\"wp-image-19942\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_292-8.png\" alt=\"IMG_292\" \/> . T\u1eeb \u0111\u00f3 suy ra t\u1eadp nghi\u1ec7m c\u1ee7a (2).<\/p>\n<p><strong>Ch\u00fa \u00fd.<\/strong> Kh\u00f4ng n\u00ean qui \u0111\u1ed3ng v\u00e0 kh\u1eed m\u1eabu.<\/p>\n<p><strong>c) B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n trong d\u1ea5u GTT\u0110<\/strong><\/p>\n<p>\u00b7 T\u01b0\u01a1ng t\u1ef1 nh\u01b0 gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n trong d\u1ea5u GTT\u0110, ta th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ecbnh ngh\u0129a ho\u1eb7c t\u00ednh ch\u1ea5t c\u1ee7a GTT\u0110 \u0111\u1ec3 kh\u1eed d\u1ea5u GTT\u0110.<\/p>\n<p>\u00b7 D\u1ea1ng 1: <img loading=\"lazy\" decoding=\"async\" width=\"312\" height=\"61\" class=\"wp-image-19943\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_293-8.png\" alt=\"IMG_293\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_293-8.png 312w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_293-8-300x59.png 300w\" sizes=\"(max-width: 312px) 100vw, 312px\" \/><\/p>\n<p>\u00b7 D\u1ea1ng 2: <img loading=\"lazy\" decoding=\"async\" width=\"274\" height=\"127\" class=\"wp-image-19944\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_294-8.png\" alt=\"IMG_294\" \/><\/p>\n<p>\u00a0<\/p>\n<p><strong>Ch\u00fa \u00fd.<\/strong> V\u1edbi B &gt; 0 ta c\u00f3: <img loading=\"lazy\" decoding=\"async\" width=\"181\" height=\"28\" class=\"wp-image-19945\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_295-8.png\" alt=\"IMG_295\" \/> ; <img loading=\"lazy\" decoding=\"async\" width=\"157\" height=\"61\" class=\"wp-image-19946\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_296-8.png\" alt=\"IMG_296\" \/> .<\/p>\n<p><strong>II \u2013 DA\u0323NG TOA\u0301N<\/strong><\/p>\n<p><strong>1. D\u1ea1ng 1: X\u00e9t d\u1ea5u c\u1ee7a nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t<\/strong><\/p>\n<p><strong>A. V\u00cd D\u1ee4 MINH H\u1eccA<\/strong><\/p>\n<p><strong>Vi\u0301 du\u0323 1: <\/strong>Cho nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t <img loading=\"lazy\" decoding=\"async\" width=\"137\" height=\"34\" class=\"wp-image-19947\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_297-8.png\" alt=\"IMG_297\" \/> . Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y \u0111\u00fang?<\/p>\n<p><strong>A.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19948\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_298-8.png\" alt=\"IMG_298\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"64\" height=\"23\" class=\"wp-image-19949\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_299-8.png\" alt=\"IMG_299\" \/> . <strong>B.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19950\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_300-8.png\" alt=\"IMG_300\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"123\" height=\"57\" class=\"wp-image-19951\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_301-8.png\" alt=\"IMG_301\" \/> .<\/p>\n<p><strong>C.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19952\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_302-8.png\" alt=\"IMG_302\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"64\" height=\"52\" class=\"wp-image-19953\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_303-8.png\" alt=\"IMG_303\" \/> . <strong>D.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19954\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_304-8.png\" alt=\"IMG_304\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"57\" class=\"wp-image-19955\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_305-8.png\" alt=\"IMG_305\" \/><\/p>\n<p><strong>H\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/strong><\/p>\n<p><strong>Ch\u1ecdn D.<\/strong><\/p>\n<p>Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"187\" height=\"52\" class=\"wp-image-19956\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_306-8.png\" alt=\"IMG_306\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"87\" height=\"23\" class=\"wp-image-19957\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_307-8.png\" alt=\"IMG_307\" \/> .<\/p>\n<p>B\u1ea3ng x\u00e9t d\u1ea5u<\/p>\n<p>\u00a0<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19958\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_308-8.png\" alt=\"IMG_308\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"17\" class=\"wp-image-19959\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_309-8.png\" alt=\"IMG_309\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"31\" height=\"52\" class=\"wp-image-19960\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_310-8.png\" alt=\"IMG_310\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"19\" class=\"wp-image-19961\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_311-8.png\" alt=\"IMG_311\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"73\" height=\"23\" class=\"wp-image-19962\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_312-8.png\" alt=\"IMG_312\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-19963\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_313-8.png\" alt=\"IMG_313\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-19964\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_314-8.png\" alt=\"IMG_314\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0+ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19965\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_315-8.png\" alt=\"IMG_315\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"57\" class=\"wp-image-19966\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_316-8.png\" alt=\"IMG_316\" \/> .<\/p>\n<p><strong>Vi\u0301 du\u0323 2: <\/strong>C\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean b\u00e9 h\u01a1n <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"22\" class=\"wp-image-19967\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_317-8.png\" alt=\"IMG_317\" \/> \u0111\u1ec3 <img loading=\"lazy\" decoding=\"async\" width=\"219\" height=\"52\" class=\"wp-image-19968\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_318-8.png\" alt=\"IMG_318\" \/> lu\u00f4n \u00e2m<\/p>\n<p><strong>A.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"189\" height=\"34\" class=\"wp-image-19969\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_319-8.png\" alt=\"IMG_319\" \/> . <strong>B.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"102\" height=\"52\" class=\"wp-image-19970\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_320-8.png\" alt=\"IMG_320\" \/> .<\/p>\n<p><strong>C.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19971\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_321-8.png\" alt=\"IMG_321\" \/> . <strong>D.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"90\" height=\"34\" class=\"wp-image-19972\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_322-8.png\" alt=\"IMG_322\" \/><\/p>\n<p><strong>H\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/strong><\/p>\n<p><strong>Ch\u1ecdn C.<\/strong><\/p>\n<p>Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"219\" height=\"52\" class=\"wp-image-19973\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_323-8.png\" alt=\"IMG_323\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"89\" height=\"52\" class=\"wp-image-19974\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_324-8.png\" alt=\"IMG_324\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"175\" height=\"52\" class=\"wp-image-19975\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_325-8.png\" alt=\"IMG_325\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"92\" height=\"52\" class=\"wp-image-19976\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_326-8.png\" alt=\"IMG_326\" \/> .<\/p>\n<p>B\u1ea3ng x\u00e9t d\u1ea5u<\/p>\n<p>\u00a0<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19977\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_327-8.png\" alt=\"IMG_327\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"17\" class=\"wp-image-19978\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_328-8.png\" alt=\"IMG_328\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"52\" class=\"wp-image-19979\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_329-8.png\" alt=\"IMG_329\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"19\" class=\"wp-image-19980\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_330-8.png\" alt=\"IMG_330\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"72\" height=\"52\" class=\"wp-image-19981\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_331-8.png\" alt=\"IMG_331\" \/><\/p>\n<\/td>\n<td>\n<p>+ <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-19982\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_332-8.png\" alt=\"IMG_332\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-19983\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_333-8.png\" alt=\"IMG_333\" \/><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-19984\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_334-8.png\" alt=\"IMG_334\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"139\" height=\"57\" class=\"wp-image-19985\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_335-8.png\" alt=\"IMG_335\" \/> .<\/p>\n<p>\u00a0<\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"108\" height=\"34\" class=\"wp-image-19986\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_336-8.png\" alt=\"IMG_336\" \/> .<\/p>\n<p><strong>Vi\u0301 du\u0323 3: <\/strong>V\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19987\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_337-8.png\" alt=\"IMG_337\" \/> thu\u1ed9c t\u1eadp h\u1ee3p n\u00e0o d\u01b0\u1edbi \u0111\u00e2y th\u00ec <img loading=\"lazy\" decoding=\"async\" width=\"253\" height=\"52\" class=\"wp-image-19988\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_338-8.png\" alt=\"IMG_338\" \/> lu\u00f4n \u00e2m<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"23\" class=\"wp-image-19989\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_339-8.png\" alt=\"IMG_339\" \/><strong>. B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"22\" class=\"wp-image-19990\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_340-8.png\" alt=\"IMG_340\" \/><strong>. C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"73\" height=\"34\" class=\"wp-image-19991\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_341-8.png\" alt=\"IMG_341\" \/><strong>. D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"73\" height=\"34\" class=\"wp-image-19992\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_342-8.png\" alt=\"IMG_342\" \/><strong>.<\/strong><\/p>\n<p><strong>H\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/strong><\/p>\n<p><strong>Ch\u1ecdn C.<\/strong><\/p>\n<p>Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"253\" height=\"52\" class=\"wp-image-19993\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_343-8.png\" alt=\"IMG_343\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"96\" height=\"52\" class=\"wp-image-19994\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_344-8.png\" alt=\"IMG_344\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-19995\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_345-8.png\" alt=\"IMG_345\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"87\" height=\"52\" class=\"wp-image-19996\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_346-8.png\" alt=\"IMG_346\" \/> .<\/p>\n<p>B\u1ea3ng x\u00e9t d\u1ea5u<\/p>\n<p>\u00a0<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-19997\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_347-8.png\" alt=\"IMG_347\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"17\" class=\"wp-image-19998\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_348-8.png\" alt=\"IMG_348\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"25\" height=\"22\" class=\"wp-image-19999\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_349-8.png\" alt=\"IMG_349\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"19\" class=\"wp-image-20000\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_350-8.png\" alt=\"IMG_350\" \/><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"52\" class=\"wp-image-20001\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_351-8.png\" alt=\"IMG_351\" \/><\/p>\n<\/td>\n<td>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20002\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_352-8.png\" alt=\"IMG_352\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-20003\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_353-8.png\" alt=\"IMG_353\" \/> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20004\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_354-8.png\" alt=\"IMG_354\" \/><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"34\" class=\"wp-image-20005\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_355-8.png\" alt=\"IMG_355\" \/> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"34\" class=\"wp-image-20006\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_356-8.png\" alt=\"IMG_356\" \/> .<\/p>\n<p>\u00a0<\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"104\" height=\"34\" class=\"wp-image-20007\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_357-8.png\" alt=\"IMG_357\" \/> .<\/p>\n<p><strong>Vi\u0301 du\u0323 4: <\/strong>T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c gi\u00e1 tr\u1ecb th\u1ef1c c\u1ee7a tham s\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"19\" class=\"wp-image-20008\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_358-8.png\" alt=\"IMG_358\" \/> \u0111\u1ec3 <img loading=\"lazy\" decoding=\"async\" width=\"210\" height=\"34\" class=\"wp-image-20009\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_359-8.png\" alt=\"IMG_359\" \/> kh\u00f4ng \u00e2m v\u1edbi m\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"127\" height=\"34\" class=\"wp-image-20010\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_360-8.png\" alt=\"IMG_360\" \/><\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20011\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_361-8.png\" alt=\"IMG_361\" \/><strong>. B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20012\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_362-8.png\" alt=\"IMG_362\" \/><strong>. C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20013\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_363-7.png\" alt=\"IMG_363\" \/><strong>. D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20014\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_364-8.png\" alt=\"IMG_364\" \/><strong>.<\/strong><\/p>\n<p><strong>H\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/strong><\/p>\n<p><strong>Ch\u1ecdn C.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"342\" height=\"34\" class=\"wp-image-20015\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_365-8.png\" alt=\"IMG_365\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_365-8.png 342w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_365-8-300x30.png 300w\" sizes=\"(max-width: 342px) 100vw, 342px\" \/> . <img loading=\"lazy\" decoding=\"async\" width=\"29\" height=\"34\" class=\"wp-image-20016\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_366-8.png\" alt=\"IMG_366\" \/><\/p>\n<p>+ X\u00e9t <img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"23\" class=\"wp-image-20017\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_367-8.png\" alt=\"IMG_367\" \/> . (kh\u00f4ng th\u1ecfa)<\/p>\n<p>+ X\u00e9t <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20018\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_368-8.png\" alt=\"IMG_368\" \/> th\u00ec <img loading=\"lazy\" decoding=\"async\" width=\"127\" height=\"34\" class=\"wp-image-20019\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_369-8.png\" alt=\"IMG_369\" \/> kh\u00f4ng th\u1ecfa \u0111i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00e3 cho. <br \/>+ X\u00e9t <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20020\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_370-8.png\" alt=\"IMG_370\" \/> th\u00ec <img loading=\"lazy\" decoding=\"async\" width=\"127\" height=\"34\" class=\"wp-image-20021\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_371-8.png\" alt=\"IMG_371\" \/> th\u1ecfa \u0111i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00e3 cho. <br \/>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20022\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_372-8.png\" alt=\"IMG_372\" \/> .<\/p>\n<p><strong>Vi\u0301 du\u0323 5: <\/strong>G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"23\" class=\"wp-image-20023\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_373-8.png\" alt=\"IMG_373\" \/> l\u00e0 t\u1eadp t\u1ea5t c\u1ea3 c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-20024\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_374-8.png\" alt=\"IMG_374\" \/> \u0111\u1ec3 <img loading=\"lazy\" decoding=\"async\" width=\"199\" height=\"34\" class=\"wp-image-20025\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_375-8.png\" alt=\"IMG_375\" \/> lu\u00f4n \u00e2m khi <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"23\" class=\"wp-image-20026\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_376-8.png\" alt=\"IMG_376\" \/> . H\u1ecfi c\u00e1c t\u1eadp h\u1ee3p n\u00e0o sau \u0111\u00e2y l\u00e0 ph\u1ea7n b\u00f9 c\u1ee7a t\u1eadp <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"23\" class=\"wp-image-20027\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_377-6.png\" alt=\"IMG_377\" \/> ?<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"64\" height=\"34\" class=\"wp-image-20028\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_378-5.png\" alt=\"IMG_378\" \/><strong>. B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"63\" height=\"34\" class=\"wp-image-20029\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_379-5.png\" alt=\"IMG_379\" \/><strong>. C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"64\" height=\"34\" class=\"wp-image-20030\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_380-5.png\" alt=\"IMG_380\" \/><strong>. D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"63\" height=\"34\" class=\"wp-image-20031\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_381-5.png\" alt=\"IMG_381\" \/><strong>.<\/strong><\/p>\n<p><strong>H\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/strong><\/p>\n<p><strong>Ch\u1ecdn D.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"23\" class=\"wp-image-20032\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_382-5.png\" alt=\"IMG_382\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"174\" height=\"34\" class=\"wp-image-20033\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_383-5.png\" alt=\"IMG_383\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"72\" height=\"23\" class=\"wp-image-20034\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_384-5.png\" alt=\"IMG_384\" \/> (do <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"23\" class=\"wp-image-20035\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_385-5.png\" alt=\"IMG_385\" \/> )<\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"96\" height=\"34\" class=\"wp-image-20036\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_386-5.png\" alt=\"IMG_386\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"140\" height=\"34\" class=\"wp-image-20037\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_387-4.png\" alt=\"IMG_387\" \/> .<\/p>","protected":false},"excerpt":{"rendered":"<p>I \u2013 LY\u0301 THUY\u00ca\u0301T 1. Nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t Nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t \u0111\u1ed1i v\u1edbi l\u00e0 bi\u1ec3u th\u1ee9c d\u1ea1ng trong \u0111\u00f3 l\u00e0 hai s\u1ed1 \u0111\u00e3 cho, . 2. D\u1ea5u c\u1ee7a nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t \u0110\u1ecbnh l\u00ed. Nh\u1ecb th\u1ee9c c\u00f3 gi\u00e1 tr\u1ecb c\u00f9ng d\u1ea5u v\u1edbi h\u1ec7 s\u1ed1 khi l\u1ea5y c\u00e1c gi\u00e1 tr\u1ecb trong kho\u1ea3ng tr\u00e1i d\u1ea5u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[41],"tags":[],"class_list":["post-19905","post","type-post","status-publish","format-standard","hentry","category-toan-lop-10"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/19905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=19905"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/19905\/revisions"}],"predecessor-version":[{"id":20038,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/19905\/revisions\/20038"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=19905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=19905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=19905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}