{"common":{"save":0,"post_id":"6349","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9983","post_id":"6349","mon_id":"1158739","chapter_id":"1158841","question":"<p align=\"center\" style=\"text-align:center\">Khi \u1edf v\u1ecb trí cân b\u1eb1ng, kim nam châm luôn ch\u1ec9 h\u01b0\u1edbng nào?<\/p>","options":["A. \u0110ông - Tây.","B. Tây - B\u1eafc.","C. \u0110ông - Nam.","D. B\u1eafc - Nam."],"correct":"4","level":"1","hint":"","answer":"<p>Khi \u1edf v\u1ecb trí cân b\u1eb1ng, kim nam châm luôn ch\u1ec9 h\u01b0\u1edbng B\u1eafc – Nam.<br \/><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng: D. B\u1eafc - Nam.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-27 09:02:03","option_type":"txt","len":2},{"id":"9984","post_id":"6349","mon_id":"1158739","chapter_id":"1158841","question":"<p>Nam châm v\u0129nh c\u1eedu có m\u1ea5y c\u1ef1c?<\/p>","options":["A. 2 c\u1ef1c.","B. 3 c\u1ef1c.","C. 4 c\u1ef1c.","D. 1 c\u1ef1c."],"correct":"1","level":"1","hint":"","answer":"<p>Nam châm v\u0129nh c\u1eedu có hai c\u1ef1c là c\u1ef1c B\u1eafc và c\u1ef1c Nam.<br \/><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng: A. 2 c\u1ef1c<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-27 09:03:05","option_type":"txt","len":0},{"id":"9985","post_id":"6349","mon_id":"1158739","chapter_id":"1158841","question":"<p>V\u1eadt li\u1ec7u b\u1ecb nam châm hút g\u1ecdi là v\u1eadt li\u1ec7u gì?<\/p>","options":["A. V\u1eadt li\u1ec7u b\u1ecb hút.","B. V\u1eadt li\u1ec7u t\u1eeb.","C. V\u1eadt li\u1ec7u có \u0111i\u1ec7n tính.","D. V\u1eadt li\u1ec7u b\u1eb1ng kim lo\u1ea1i."],"correct":"2","level":"1","hint":"<p>Nam châm hút \u0111\u01b0\u1ee3c các v\u1eadt làm b\u1eb1ng s\u1eaft, thép, cobalt, nickel, … là nh\u1eefng v\u1eadt li\u1ec7u t\u1eeb.<\/p>","answer":"<p>V\u1eadt li\u1ec7u b\u1ecb nam châm hút g\u1ecdi là v\u1eadt li\u1ec7u t\u1eeb.<br \/><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng: B. V\u1eadt li\u1ec7u t\u1eeb<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-10-27 09:04:35","option_type":"txt","len":2}]}
