{"common":{"save":0,"post_id":"757","level":2,"total":20,"point":5,"point_extra":0},"segment":[{"id":"861","post_id":"757","mon_id":"0","chapter_id":"0","question":"Ch\u1ecdn c\u00e1c s\u1ed1, t\u1eeb, c\u1ee5m t\u1eeb th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng","options":{"time":24,"part":[{"title":"Ch\u1ecdn c\u00e1c s\u1ed1, t\u1eeb, c\u1ee5m t\u1eeb th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","correct":[["3"],["d\u01b0\u01a1ng"]],"temp":"drop_blank","list":[{"point":5,"word":["3","4","\u00e2m","d\u01b0\u01a1ng"],"ques":"<p>\u0110i\u1ec3m 4 c\u00e1ch \u0111i\u1ec3m 1 l\u00e0 _dr_blank_ \u0111\u01a1n v\u1ecb theo chi\u1ec1u_dr_blank_ <\/p>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>D\u1ef1a v\u00e0o tr\u1ee5c s\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh. <br\/> N\u1ebfu \u0111i\u1ec3m n\u00e0y c\u00e1ch \u0111i\u1ec3m kia theo chi\u1ec1u t\u1eeb tr\u00e1i sang ph\u1ea3i g\u1ecdi l\u00e0 chi\u1ec1u d\u01b0\u01a1ng, chi\u1ec1u t\u1eeb ph\u1ea3i sang tr\u00e1i g\u1ecdi l\u00e0 chi\u1ec1u \u00e2m c\u1ee7a tr\u1ee5c s\u1ed1.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Quan s\u00e1t tr\u1ee5c s\u1ed1 ta th\u1ea5y: <center><img src='img\/D621_TB107.png' \/><\/center> <br\/> \u0110i\u1ec3m 4 c\u00e1ch \u0111i\u1ec3m 1 l\u00e0 3 \u0111\u01a1n v\u1ecb theo chi\u1ec1u d\u01b0\u01a1ng<br\/>V\u1eady c\u00e1c s\u1ed1 v\u00e0 t\u1eeb, c\u1ee5m t\u1eeb c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i l\u00e0:<span class='basic_pink'> 3; d\u01b0\u01a1ng<\/span> "}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:46"},{"id":"862","post_id":"757","mon_id":"0","chapter_id":"0","question":"H\u00e3y click v\u00e0o s\u1ed1, t\u1eeb, c\u1ee5m t\u1eeb th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1p \u00e1n \u0111\u00fang","options":{"time":24,"part":[{"title":"H\u00e3y click v\u00e0o s\u1ed1, t\u1eeb, c\u1ee5m t\u1eeb th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","correct":[["5"],["\u00e2m"]],"temp":"drop_blank","list":[{"point":5,"word":["4","5","\u00e2m","d\u01b0\u01a1ng"],"ques":"<p>\u0110i\u1ec3m -2 c\u00e1ch \u0111i\u1ec3m 3 l\u00e0 _dr_blank_ \u0111\u01a1n v\u1ecb theo chi\u1ec1u_dr_blank_ <\/p>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>D\u1ef1a v\u00e0o tr\u1ee5c s\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh<br\/> N\u1ebfu \u0111i\u1ec3m n\u00e0y c\u00e1ch \u0111i\u1ec3m kia theo chi\u1ec1u t\u1eeb tr\u00e1i sang ph\u1ea3i g\u1ecdi l\u00e0 chi\u1ec1u d\u01b0\u01a1ng, chi\u1ec1u t\u1eeb ph\u1ea3i sang tr\u00e1i g\u1ecdi l\u00e0 chi\u1ec1u \u00e2m c\u1ee7a tr\u1ee5c s\u1ed1.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Quan s\u00e1t tr\u1ee5c s\u1ed1 ta th\u1ea5y: <center><img src='img\/D621_TB108.png' \/><\/center> <br\/> \u0110i\u1ec3m -2 c\u00e1ch \u0111i\u1ec3m 3 l\u00e0 5 \u0111\u01a1n v\u1ecb theo chi\u1ec1u \u00e2m<br\/>V\u1eady c\u00e1c s\u1ed1 v\u00e0 t\u1eeb, c\u1ee5m t\u1eeb c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i l\u00e0:<span class='basic_pink'> 5; \u00e2m<\/span> "}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:46"},{"id":"863","post_id":"757","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n c\u00e1c k\u00ed hi\u1ec7u th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n c\u00e1c k\u00ed hi\u1ec7u th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","correct":[["N"],["Z"]],"temp":"drop_blank","list":[{"point":5,"word":["N","Z"],"ques":"<p>$\\dfrac{-147}{3}\\notin $ _dr_blank_ , $ \\dfrac{-147}{3} \\in $ _dr_blank_ <\/p>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Ph\u00e2n s\u1ed1 ch\u01b0a t\u1ed1i gi\u1ea3n th\u00ec bi\u1ebfn \u0111\u1ed5i v\u1ec1 d\u1ea1ng t\u1ed1i gi\u1ea3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><br\/> Ta c\u00f3: $ \\dfrac{-147}{3} = - 49$ M\u00e0 $ - 49 \\notin N ; - 49 \\in Z $<br\/>N\u00ean $ \\dfrac{-147}{3} \\notin $ N; $\\dfrac{-147}{3} \\in $ Z <br\/> V\u1eady c\u00e1c k\u00ed hi\u1ec7u c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i l\u00e0:<span class='basic_pink'> N ; Z<\/span> "}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:46"}]}