{"common":{"save":0,"post_id":"746","level":1,"total":20,"point":5,"point_extra":0},"segment":[{"id":"711","post_id":"746","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='img\/1.png' \/><\/center> <br\/> \u01af\u1edbc chung l\u1edbn nh\u1ea5t l\u00e0 m\u1ed9t s\u1ed1 b\u1ea5t k\u00ec trong t\u1eadp h\u1ee3p \u01b0\u1edbc chung. <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> \u01af\u1edbc chung l\u1edbn nh\u1ea5t l\u00e0 s\u1ed1 l\u1edbn nh\u1ea5t trong t\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc chung <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> SAI <\/b> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:45"},{"id":"712","post_id":"746","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='img\/1.png' \/><\/center> <br\/> \u01af\u1edbc chung l\u1edbn nh\u1ea5t l\u00e0 s\u1ed1 nh\u1ecf nh\u1ea5t trong c\u00e1c s\u1ed1 \u0111\u00e3 cho n\u1ebfu s\u1ed1 \u0111\u00f3 l\u00e0 \u01b0\u1edbc c\u1ee7a c\u00e1c s\u1ed1 c\u00f2n l\u1ea1i. <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ch\u1eb3ng h\u1ea1n cho 3 s\u1ed1 a, b, c <br\/> N\u1ebfu b $\\vdots$ a, c $\\vdots$ a (hay a l\u00e0 \u01b0\u1edbc c\u1ee7a b, a l\u00e0 \u01b0\u1edbc c\u1ee7a c) <br\/> Khi \u0111\u00f3 \u01afCLN(a, b, c) = a <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> \u0110\u00daNG <\/b> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:45"},{"id":"713","post_id":"746","mon_id":"0","chapter_id":"0","question":"","options":{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t <br\/> <center><img src='img\/3.jpg' \/><\/center> ","select":["A. \u01afCLN(20, 30) = 5 ","B. \u01afCLN(20, 30) = 6 ","C. \u01afCLN(20, 30) = 10 ","D. \u01afCLN(20, 30) = 15 "],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> PH\u01af\u01a0NG PH\u00c1P T\u00ccM \u01afCLN c\u1ee7a 2 hay nhi\u1ec1u s\u1ed1 <br\/> <b> B\u01b0\u1edbc 1: <\/b> Ph\u00e2n t\u00edch m\u1ed7i s\u1ed1 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 <br\/> <b> B\u01b0\u1edbc 2: <\/b> Ch\u1ecdn ra c\u00e1c th\u1eeba s\u1ed1 chung <br\/> <b> B\u01b0\u1edbc 3: <\/b> L\u1eadp t\u00edch c\u00e1c th\u1eeba s\u1ed1 \u0111\u00e3 ch\u1ecdn, m\u1ed7i th\u1eeba s\u1ed1 l\u1ea5y v\u1edbi s\u1ed1 m\u0169 nh\u1ecf nh\u1ea5t c\u1ee7a n\u00f3. <br\/> T\u00edch \u0111\u00f3 ch\u00ednh l\u00e0 \u01afCLN c\u1ea7n t\u00ecm <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: <br\/> <b> B\u01b0\u1edbc 1: <\/b> Ph\u00e2n t\u00edch 20 v\u00e0 30 ra t\u00edch c\u00e1c th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 <br\/> $20 = 2^2 . 5$ ; $30 = 2 . 3 . 5$ <br\/> <b> B\u01b0\u1edbc 2: <\/b> Ch\u1ecdn ra th\u1eeba s\u1ed1 chung <br\/> Ta th\u1ea5y c\u00f3 2 v\u00e0 5 l\u00e0 th\u1eeba s\u1ed1 chung <br\/> <b> B\u01b0\u1edbc 3: <\/b> L\u1eadp t\u00edch c\u00e1c th\u1eeba s\u1ed1 \u0111\u00e3 ch\u1ecdn m\u1ed7i s\u1ed1 l\u1ea5y v\u1edbi s\u1ed1 m\u0169 nh\u1ecf nh\u1ea5t c\u1ee7a n\u00f3 <br\/> \u01afCLN(20, 30) = 2 . 5 = 10 <br\/> <span class='basic_pink'> V\u1eady \u01afCLN(20, 30) = 10 <\/span> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:45"}]}