{"common":{"save":0,"post_id":"4944","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9489","post_id":"4944","mon_id":"1158195","chapter_id":"1158234","question":"<p>Trái \u0110\u1ea5t có d\u1ea1ng hình nào sau \u0111ây?<\/p>","options":["A. Hình tròn.","B. Hình vuông.","C. Hình c\u1ea7u.","D. Hình b\u1ea7u d\u1ee5c."],"correct":"3","level":"1","hint":"<p>Xem l\u1ea1i ki\u1ebfn th\u1ee9c hình d\u1ea1ng và kích th\u01b0\u1edbc c\u1ee7a Trái \u0110\u1ea5t.<\/p>","answer":"<p>Trái \u0110\u1ea5t có d\u1ea1ng hình c\u1ea7u, có kích th\u01b0\u1edbc r\u1ea5t l\u1edbn v\u1edbi bán kính là 6378km.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"137","test":"0","date":"2021-10-17 10:37:50","option_type":"txt","len":2},{"id":"9490","post_id":"4944","mon_id":"1158195","chapter_id":"1158234","question":"<p>Trong h\u1ec7 M\u1eb7t Tr\u1eddi, Trái \u0110\u1ea5t \u1edf v\u1ecb trí nào sau \u0111ây theo th\u1ee9 t\u1ef1 xa d\u1ea7n M\u1eb7t Tr\u1eddi?<\/p>","options":["A. V\u1ecb trí th\u1ee9 3.","B. V\u1ecb trí th\u1ee9 5.","C. V\u1ecb trí th\u1ee9 9.","D. V\u1ecb trí th\u1ee9 7."],"correct":"1","level":"1","hint":"<p>Xem l\u1ea1i ki\u1ebfn th\u1ee9c v\u1ecb trí c\u1ee7a Trái \u0110\u1ea5t trong h\u1ec7 M\u1eb7t Tr\u1eddi.<\/p>","answer":"<p>H\u1ec7 M\u1eb7t Tr\u1eddi g\u1ed3m có 8 hành tinh. Tính t\u1eeb M\u1eb7t Tr\u1eddi bao g\u1ed3m: sao Th\u1ee7y, sao Kim, Trái \u0110\u1ea5t, sao H\u1ecfa, sao M\u1ed9c, sao Th\u1ed5, sao Thiên V\u01b0\u01a1ng, sao H\u1ea3i V\u01b0\u01a1ng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"137","test":"0","date":"2021-10-17 10:38:54","option_type":"txt","len":2},{"id":"9491","post_id":"4944","mon_id":"1158195","chapter_id":"1158234","question":"<p>Trái \u0110\u1ea5t có bán kính \u1edf c\u1ef1c là<\/p>","options":["A. 6387 km.","B. 6356 km.","C. 6378 km.","D. 6365 km."],"correct":"2","level":"1","hint":"<p>Xem l\u1ea1i ki\u1ebfn th\u1ee9c v\u1ec1 hình d\u1ea1ng và kích th\u01b0\u1edbc c\u1ee7a Trái \u0110\u1ea5t.<\/p>","answer":"<p>Các nhà khoa h\u1ecdc \u0111ã ch\u1ee9ng minh \u0111\u01b0\u1ee3c hình d\u1ea1ng c\u1ea7u c\u1ee7a Trái \u0110\u1ea5t không th\u1eadt lí t\u01b0\u1edfng mà h\u01a1i d\u1eb9t \u1edf hai c\u1ef1c, vì v\u1eady có s\u1ef1 chênh l\u1ec7ch gi\u1eefa bán kính \u1edf Xích \u0111\u1ea1o (6378km) v\u1edbi bán kính \u1edf hai c\u1ef1c (6356 km).<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"137","test":"0","date":"2021-10-17 10:40:09","option_type":"txt","len":0}]}
