{"common":{"save":0,"post_id":"5378","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"12365","post_id":"5378","mon_id":"1158196","chapter_id":"1158421","question":"<p>C\u01a1 s\u1edf \u0111\u1ec3 con ng\u01b0\u1eddi xác \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u1eddi gian và t\u1ea1o ra l\u1ecbch là gì?<\/p>","options":["A. \u0110\u1ebfm s\u1ed1 ngày trong m\u1ed9t n\u0103m.","B. Quan sát s\u1ef1 v\u1eadn \u0111\u1ed9ng c\u1ee7a M\u1eb7t Tr\u0103ng, M\u1eb7t Tr\u1eddi.","C. D\u1ef1a trên l\u1ecbch c\u1ee7a ng\u01b0\u1eddi nguyên th\u1ee7y.","D. Quan sát các hi\u1ec7n t\u01b0\u1ee3ng xã h\u1ed9i."],"correct":"2","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng: B. Quan sát s\u1ef1 v\u1eadn \u0111\u1ed9ng c\u1ee7a M\u1eb7t Tr\u0103ng, M\u1eb7t Tr\u1eddi.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"143","test":"0","date":"2021-12-13 23:22:05","option_type":"txt","len":3},{"id":"12366","post_id":"5378","mon_id":"1158196","chapter_id":"1158421","question":"<p>T\u1eeb xa x\u01b0a, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cho ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t nông nghi\u1ec7p, ng\u01b0\u1eddi Vi\u1ec7t Nam \u0111ã d\u1ef1a vào quan sát và tính toán quy lu\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t Tr\u0103ng, Trái \u0110\u1ea5t,… và \u0111úc k\u1ebft nh\u01b0 sau:<\/p><p><span style=\"color:#2980b9;\">“Trông tr\u1eddi, trông \u0111\u1ea5t, trông mây,<\/span><\/p><p><span style=\"color:#2980b9;\">Trông m\u01b0a, trông n\u1eafng, trông ngày, trông \u0111êm”.<\/span><\/p><p><span style=\"color:#2980b9;\"><\/span>Theo em, trong ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t nông nghi\u1ec7p, ng\u01b0\u1eddi Vi\u1ec7t Nam th\u01b0\u1eddng tính theo l\u1ecbch nào?<\/p>","options":["A. Âm l\u1ecbch.","B. D\u01b0\u01a1ng l\u1ecbch.","C. Ph\u1eadt l\u1ecbch.","D. L\u1ecbch v\u1ea1n niên."],"correct":"1","level":"3","hint":"","answer":"<p>\u0110áp án \u0111úng: A. Âm l\u1ecbch.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"143","test":"0","date":"2021-12-13 23:23:29","option_type":"txt","len":2},{"id":"12367","post_id":"5378","mon_id":"1158196","chapter_id":"1158421","question":"<p>N\u0103m 221 TCN, T\u1ea7n Th\u1ee7y Hoàng \u0111ã th\u1ed1ng nh\u1ea5t và xác l\u1eadp ch\u1ebf \u0111\u1ed9 phong ki\u1ebfn \u1edf Trung Qu\u1ed1c. Em hãy tính t\u1eeb th\u1eddi \u0111i\u1ec3m \u0111ó \u0111\u1ebfn n\u0103m hi\u1ec7n t\u1ea1i (n\u0103m 2021) là bao nhiêu n\u0103m?<\/p>","options":["A. 2021 n\u0103m.","B. 2242 n\u0103m.","C. 1800 n\u0103m.","D. 2241 n\u0103m."],"correct":"4","level":"3","hint":"<p>N\u0103m 1 là n\u0103m b\u1eaft \u0111\u1ea7u Công nguyên<\/p>","answer":"<p>\u0110áp án \u0111úng:<span style=\"color:#16a085;\"><strong> D. 2241 n\u0103m.<\/strong><\/span><\/p><p>(L\u1ea5y 2021 + 221 - 1 = 2241<\/p><p>Vì n\u0103m 1 là n\u0103m b\u1eaft \u0111\u1ea7u Công nguyên nên -1)<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"143","test":"0","date":"2021-12-13 23:25:15","option_type":"txt","len":1}]}
