{"common":{"save":0,"post_id":"4921","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9250","post_id":"4921","mon_id":"1158149","chapter_id":"1158153","question":"<p>Cân \u0111\u1ed3ng h\u1ed3, cân \u0111i\u1ec7n t\u1eed và cân y t\u1ebf là 3 lo\u1ea1i cân \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn. \u0110úng hay sai?<\/p>","options":["\u0110úng","Sai"],"correct":"1","level":"2","hint":"","answer":"<p>Cân \u0111\u1ed3ng h\u1ed3, cân \u0111i\u1ec7n t\u1eed và cân y t\u1ebf là 3 lo\u1ea1i cân \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn là: <span style=\"color:#16a085;\"><strong>\u0110úng<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"3","date":"2021-10-13 02:16:55","option_type":"txt","len":1},{"id":"9253","post_id":"4921","mon_id":"1158149","chapter_id":"1158153","question":"<p>Cân là d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111o gì?<\/p>","options":["<strong>A.<\/strong> \u0110o chi\u1ec1u dài","<strong>B.<\/strong> \u0110o \u0111\u1ed9","<strong>C.<\/strong> \u0110o kh\u1ed1i l\u01b0\u1ee3ng","<strong>D.<\/strong> \u0110o th\u1ec3 tích"],"correct":"3","level":"2","hint":"","answer":"<p>\u0110áp án \u0111úng là: <span style=\"color:#16a085;\"><strong>C. \u0110o kh\u1ed1i l\u01b0\u1ee3ng<\/strong><\/span><\/p><p>(\u0110o chi\u1ec1u dài dùng th\u01b0\u1edbc; \u0110o \u0111\u1ed9 dùng nhi\u1ec7t k\u1ebf; \u0110o kh\u1ed1i l\u01b0\u1ee3ng dùng cân; \u0110o th\u1ec3 tích dùng \u1ed1ng có bình chia)<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"3","date":"2021-10-13 02:20:17","option_type":"txt","len":2},{"id":"9254","post_id":"4921","mon_id":"1158149","chapter_id":"1158153","question":"<p>\u0110\u1ed5i \u0111\u01a1n v\u1ecb:<\/p><p><span style=\"color:#2980b9;\">20kg = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>y\u1ebfn<\/span><\/p><p><span style=\"color:#2980b9;\">200 y\u1ebfn = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>t\u1ea1<\/span><\/p>","options":"","correct":["[\"2\",\"20\"]"],"level":"2","hint":"","answer":"<p>1 y\u1ebfn = 10 kg ; 10 y\u1ebfn = 1 t\u1ea1<\/p><p>nên 20 kg = 2 y\u1ebfn<\/p><p>200 y\u1ebfn = 20 t\u1ea1<\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n vào ô tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t là <span style=\"color:#16a085;\"><strong>2<\/strong><\/span> và <span style=\"color:#16a085;\"><strong>20<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"139","test":"3","date":"2021-10-13 02:23:02"}]}