{"common":{"save":0,"post_id":"4922","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9273","post_id":"4922","mon_id":"1158149","chapter_id":"1158153","question":"<p>\u0110\u1ed5i \u0111\u01a1n v\u1ecb \u0111o kh\u1ed1i l\u01b0\u1ee3ng sau ?<\/p><p><span style=\"color:#2980b9;\">5 t\u1ea5n = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>kg = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>t\u1ea1 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>y\u1ebfn<\/span><\/p>","options":"","correct":["[\"5000\",\"50\",\"500\"]"],"level":"3","hint":"","answer":"<p>Vì 1 t\u1ea5n = 1000kg; 1 t\u1ea5n = 10 t\u1ea1 ; 1 t\u1ea1 = 10 y\u1ebfn<\/p><p>nên 5 t\u1ea5n = 5000kg = 50 t\u1ea1 = 500 y\u1ebfn<\/p><p>V\u1eady các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là <span style=\"color:#16a085;\"><strong>5000<\/strong><\/span> ;<span style=\"color:#16a085;\"><strong> 50 <\/strong><\/span>; <span style=\"color:#16a085;\"><strong>500<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"139","test":"3","date":"2021-10-13 02:58:08"},{"id":"9278","post_id":"4922","mon_id":"1158149","chapter_id":"1158153","question":"<p>Khi cân trong phòng th\u1ef1c hành, h\u1ecdc sinh c\u1ea7n dùng gì \u0111\u1ec3 \u0111\u1eb7t bình \u0111\u1ef1ng hóa ch\u1ea5t\/ d\u1ee5ng c\u1ee5 \u0111\u1ef1ng v\u1eadt m\u1eabu lên \u0111\u0129a cân, bàn cân?<\/p>","options":["<strong>A. <\/strong>S\u1eed d\u1ee5ng kh\u0103n s\u1ea1ch qu\u1ea5n quanh","<strong>B. <\/strong>S\u1eed d\u1ee5ng k\u1eb9p ho\u1eb7c g\u0103ng tay","<strong>C. <\/strong>S\u1eed d\u1ee5ng kh\u1ea9u trang, m\u1eaft kính"],"correct":"2","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng là: <span style=\"color:#16a085;\"><strong>B. <\/strong>S\u1eed d\u1ee5ng k\u1eb9p ho\u1eb7c g\u0103ng tay<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"3","date":"2021-10-13 03:11:33","option_type":"txt","len":2},{"id":"9285","post_id":"4922","mon_id":"1158149","chapter_id":"1158153","question":"<p>Thao tác nào sau \u0111ây là <strong>sai <\/strong>khi dùng cân \u0111\u1ed3ng h\u1ed3 ho\u1eb7c cân \u0111i\u1ec7n t\u1eed?<\/p>","options":["<strong>A.<\/strong> Không \u0111\u1ec3 v\u1eadt c\u1ed3ng k\u1ec1nh trên \u0111\u0129a cân","<strong>B.<\/strong> \u0110\u1ecdc k\u1ebft qu\u1ea3 khi cân \u1ed5n \u0111\u1ecbnh","<strong>C. <\/strong>M\u1eaft \u0111\u1eb7t vuông góc v\u1edbi m\u1eb7t \u0111\u1ed3ng h\u1ed3","<strong>D.<\/strong> \u0110\u1eb7t cân trên b\u1ec1 m\u1eb7t không cân b\u1eb1ng"],"correct":"4","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng là: <span style=\"color:#16a085;\"><strong>D.<\/strong> \u0110\u1eb7t cân trên b\u1ec1 m\u1eb7t không cân b\u1eb1ng<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"1","date":"2021-10-13 03:27:42","option_type":"txt","len":3}]}
