{"common":{"save":0,"post_id":"7818","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7570","post_id":"7818","mon_id":"1159278","chapter_id":"1159327","question":"<p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a 5² – 3² là:<\/p>","options":["<strong>A.<\/strong> 16","<strong>B.<\/strong> 4","<strong>C.<\/strong> –4","<strong>D.<\/strong> <span class=\"math-tex\">$\\pm4$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> 4<\/span><\/p><p>5² – 3² = 25 – 9 = 16<\/p><p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a 16 là: 4<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"127","test":"0","date":"2024-10-11 01:59:47","option_type":"math","len":0},{"id":"7571","post_id":"7818","mon_id":"1159278","chapter_id":"1159327","question":"<p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a (–3)² là:<\/p>","options":["<strong>A.<\/strong> 3","<strong>B.<\/strong> –3","<strong>C.<\/strong> 9","<strong>D.<\/strong> –9"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 3<\/span><\/p><p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a (–3)² là: 3<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"127","test":"0","date":"2024-10-11 02:01:15","option_type":"txt","len":0},{"id":"7572","post_id":"7818","mon_id":"1159278","chapter_id":"1159327","question":"<p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a 0,0169 là:<\/p>","options":["<strong>A.<\/strong> 0,13","<strong>B.<\/strong> 1,3","<strong>C.<\/strong> –0,13","<strong>D.<\/strong> 13"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 0,13<\/span><\/p><p>C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a 0,0169 là: 0,13.<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"127","test":"0","date":"2024-10-11 02:02:38","option_type":"txt","len":0}]}
