{"segment":[{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" Ch\u1ec9 ra c\u00e2u sai: \u0110\u1eb7t m\u1ed9t c\u00e2y n\u1ebfn tr\u01b0\u1edbc m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.","select":["A. Ta c\u00f3 thu \u0111\u01b0\u1ee3c \u1ea3nh c\u1ee7a c\u00e2y n\u1ebfn tr\u00ean m\u00e0n \u1ea3nh.","B. \u1ea2nh c\u1ee7a c\u00e2y n\u1ebfn tr\u00ean m\u00e0n \u1ea3nh c\u00f3 th\u1ec3 l\u1edbn ho\u1eb7c nh\u1ecf h\u01a1n c\u00e2y n\u1ebfn.","C. \u1ea2nh c\u1ee7a c\u00e2y n\u1ebfn tr\u00ean m\u00e0n \u1ea3nh c\u00f3 th\u1ec3 l\u00e0 \u1ea3nh th\u1eadt ho\u1eb7c \u1ea3nh \u1ea3o.","D. \u1ea2nh \u1ea3o c\u1ee7a c\u00e2y n\u1ebfn lu\u00f4n lu\u00f4n l\u1edbn h\u01a1n c\u00e2y n\u1ebfn."],"hint":"","explain":"<span class='basic_left'>\u0110\u1eb7c \u0111i\u1ec3m \u1ea3nh c\u1ee7a m\u1ed9t v\u1eadt t\u1ea1o b\u1edfi th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. <br\/>V\u1eadt \u0111\u1eb7t ngo\u00e0i kho\u1ea3ng ti\u00eau c\u1ef1 cho \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt. Khi v\u1eadt \u0111\u1eb7t r\u1ea5t xa th\u1ea5u k\u00ednh th\u00ec \u1ea3nh th\u1eadt c\u00f3 v\u1ecb tr\u00ed c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng b\u1eb1ng ti\u00eau c\u1ef1. <br\/>V\u1eadt \u0111\u1eb7t trong kho\u1ea3ng ti\u00eau c\u1ef1 cho \u1ea3nh \u1ea3o, l\u1edbn h\u01a1n v\u1eadt v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt <br\/>V\u1eadt \u0111\u1eb7t vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh cho \u1ea3nh c\u0169ng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a v\u1eadt. <br\/>N\u00ean c\u00e2u sai l\u00e0 c\u00e2u C: \u1ea2nh c\u1ee7a c\u00e2y n\u1ebfn tr\u00ean m\u00e0n \u1ea3nh c\u00f3 th\u1ec3 l\u00e0 \u1ea3nh th\u1eadt ho\u1eb7c \u1ea3nh \u1ea3o<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":3451},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh A\u2019B\u2019 \u1ea3nh v\u00e0 v\u1eadt n\u1eb1m v\u1ec1 c\u00f9ng m\u1ed9t ph\u00eda \u0111\u1ed1i v\u1edbi th\u1ea5u k\u00ednh \u1ea3nh A\u2019B\u2019","select":["A. l\u00e0 \u1ea3nh \u1ea3o","B. nh\u1ecf h\u01a1n v\u1eadt","C. ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt","D. vu\u00f4ng g\u00f3c v\u1edbi v\u1eadt"],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3452},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" \u1ea2nh A\u2019B\u2019 c\u1ee7a m\u1ed9t v\u1eadt s\u00e1ng AB \u0111\u1eb7t vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh t\u1ea1i A v\u00e0 \u1edf trong kho\u1ea3ng ti\u00eau c\u1ef1 c\u1ee7a m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 ","select":["A. \u1ea3nh \u1ea3o ng\u01b0\u1ee3c chi\u1ec1u v\u1eadt.","B. \u1ea3nh \u1ea3o c\u00f9ng chi\u1ec1u v\u1eadt.","C. \u1ea3nh th\u1eadt c\u00f9ng chi\u1ec1u v\u1eadt.","D. \u1ea3nh th\u1eadt ng\u01b0\u1ee3c chi\u1ec1u v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3453},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u1ea2nh A\u2019B\u2019 c\u1ee7a m\u1ed9t v\u1eadt s\u00e1ng AB \u0111\u1eb7t vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh t\u1ea1i A v\u00e0 \u1edf ngo\u00e0i kho\u1ea3ng ti\u00eau c\u1ef1 c\u1ee7a m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0","select":["A. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt.","B. a\u0309nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","C. a\u0309nh \u1ea3o, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt.","D. a\u0309nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3454},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh A\u2019B\u2019, \u1ea3nh v\u00e0 v\u1eadt n\u1eb1m v\u1ec1 hai ph\u00eda \u0111\u1ed1i v\u1edbi th\u1ea5u k\u00ednh th\u00ec a\u0309nh la\u0300 ","select":["A. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt.","B. a\u0309nh th\u1eadt lu\u00f4n l\u1edbn h\u01a1n v\u1eadt.","C. a\u0309nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","D. a\u0309nh v\u00e0 v\u1eadt lu\u00f4n c\u00f3 \u0111\u1ed9 cao b\u1eb1ng nhau."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3455},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u0110\u1eb7t m\u1ed9t v\u1eadt AB h\u00ecnh m\u0169i t\u00ean vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 ti\u00eau c\u1ef1 f v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng d > 2f th\u00ec \u1ea3nh A\u2019B\u2019c\u1ee7a AB qua th\u1ea5u k\u00ednh c\u00f3 t\u00ednh ch\u1ea5t la\u0300 ","select":["A. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. a\u0309nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","C. a\u0309nh th\u1eadt , ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 l\u1edbn h\u01a1n v\u1eadt.","D. a\u0309nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u00e0 l\u1edbn h\u01a1n v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3456},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u0110\u1eb7t m\u1ed9t v\u1eadt AB h\u00ecnh m\u0169i t\u00ean vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 ti\u00eau c\u1ef1 f v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng d = 2f th\u00ec \u1ea3nh A\u2019B\u2019c\u1ee7a AB qua th\u1ea5u k\u00ednh c\u00f3 t\u00ednh ch\u1ea5t ","select":["A. a\u0309nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 l\u1edbn h\u01a1n v\u1eadt.","C. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","D. a\u0309nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 b\u1eb1ng v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3457},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh A\u2019B\u2019 c\u00f3 \u0111\u1ed9 cao b\u1eb1ng v\u1eadt AB th\u00ec ","select":["A. a\u0309nh A\u2019B\u2019l\u00e0 \u1ea3nh \u1ea3o.","B. v\u1eadt v\u00e0 \u1ea3nh n\u1eb1m v\u1ec1 c\u00f9ng m\u1ed9t ph\u00eda \u0111\u1ed1i v\u1edbi th\u1ea5u k\u00ednh.","C. v\u1eadt n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng g\u1ea5p 2 l\u1ea7n ti\u00eau c\u1ef1.","D. v\u1eadt n\u1eb1m tr\u00f9ng ti\u00eau \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":3458},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u0110\u1eb7t m\u1ed9t v\u1eadt AB h\u00ecnh m\u0169i t\u00ean vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh A\u2019B\u2019. \u1ea2nh c\u1ee7a \u0111i\u1ec3m M l\u00e0 trung \u0111i\u1ec3m c\u1ee7a AB n\u1eb1m \u1edf ","select":["A. tr\u00ean \u1ea3nh A\u2019B\u2019 c\u00e1ch A\u2019 m\u1ed9t \u0111o\u1ea1n $\\dfrac{AB}{3}$.","B. t\u1ea1i trung \u0111i\u1ec3m c\u1ee7a \u1ea3nh A\u2019B\u2019.","C. tr\u00ean \u1ea3nh A\u2019B\u2019v\u00e0 g\u1ea7n v\u1edbi \u0111i\u1ec3m A\u2019 h\u01a1n.","D. tr\u00ean \u1ea3nh A\u2019B\u2019v\u00e0 g\u1ea7n v\u1edbi \u0111i\u1ec3m B\u2019 h\u01a1n."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3459},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 f v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng OA cho \u1ea3nh A\u2019B\u2019 ng\u01b0\u1ee3c chi\u1ec1u cao b\u1eb1ng v\u1eadt AB th\u00ec ","select":["A. OA = f.","B. OA = 2f.","C. OA > f.","D. OA< f."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3460},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u1ea2nh th\u1eadt cho b\u1edfi th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 bao gi\u1edd c\u0169ng ","select":["A. c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","C. ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 l\u1edbn h\u01a1n v\u1eadt.","D. ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3461},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Khi m\u1ed9t v\u1eadt \u0111\u1eb7t r\u1ea5t xa th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, th\u00ec \u1ea3nh th\u1eadt c\u00f3 v\u1ecb tr\u00ed c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng ","select":["A. b\u1eb1ng ti\u00eau c\u1ef1.","B. nh\u1ecf h\u01a1n ti\u00eau c\u1ef1.","C. l\u1edbn h\u01a1n ti\u00eau c\u1ef1.","D. g\u1ea5p 2 l\u1ea7n ti\u00eau c\u1ef1."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3462},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt s\u00e1ng \u0111\u1eb7t ngo\u00e0i kho\u1ea3ng ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 f = 16cm. C\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c \u1ea3nh nh\u1ecf h\u01a1n v\u1eadt t\u1ea1o b\u1edfi th\u1ea5u k\u00ednh n\u00e0y khi \u0111\u1eb7t v\u1eadt c\u00e1ch th\u1ea5u k\u00ednh ","select":["A. 8cm.","B. 16cm.","C. 32cm.","D. 48cm."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3463},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 f. \u0110i\u1ec3m A n\u1eb1m tr\u00ean tr\u1ee5c ch\u00ednh, cho \u1ea3nh th\u1eadt A\u2019B\u2019 l\u1edbn h\u01a1n v\u1eadt th\u00ec AB n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t \u0111o\u1ea1n ","select":["A. f < OA < 2f.","B. OA > 2f.","C. 0 < OA < f.","D. OA = 2f."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3464},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 f. \u0110i\u1ec3m A n\u1eb1m tr\u00ean tr\u1ee5c ch\u00ednh, cho \u1ea3nh th\u1eadt A\u2019B\u2019 nh\u1ecf h\u01a1n v\u1eadt th\u00ec AB n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t \u0111o\u1ea1n ","select":["A. OA < f.","B. OA > 2f.","C. OA = f.","D. OA = 2f."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3465},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"V\u00e2\u0323t AB \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 f v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng $OA=\\dfrac{f}{2}$ . cho \u1ea3nh A\u2019B\u2019. \u1ea2nh A\u2019B\u2019 c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m ","select":["A. l\u00e0 \u1ea3nh \u1ea3o, c\u00f9ng chi\u1ec1u, cao g\u1ea5p 2 l\u1ea7n v\u1eadt.","B. l\u00e0 \u1ea3nh \u1ea3o, ng\u01b0\u1ee3c chi\u1ec1u, cao g\u1ea5p 2 l\u1ea7n v\u1eadt.","C. l\u00e0 \u1ea3nh th\u1eadt, c\u00f9ng chi\u1ec1u, cao g\u1ea5p 2 l\u1ea7n v\u1eadt.","D. l\u00e0 \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u, cao g\u1ea5p 2 l\u1ea7n v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3466},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"V\u1eadt th\u1eadt n\u1eb1m tr\u01b0\u1edbc th\u1ea5u k\u00ednh v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng d v\u1edbi f < d < 2f th\u00ec cho ","select":["A. \u1ea3nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 l\u1edbn h\u01a1n v\u1eadt.","C. \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","D. \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 b\u1eb1ng v\u1eadt."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3467},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"M\u1ed9t v\u1eadt th\u1eadt mu\u1ed1n c\u00f3 \u1ea3nh c\u00f9ng chi\u1ec1u v\u00e0 b\u1eb1ng v\u1eadt qua th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 th\u00ec v\u1eadt ph\u1ea3i ","select":["A. \u0111\u1eb7t s\u00e1t th\u1ea5u k\u00ednh.","B. n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t \u0111o\u1ea1n f.","C. n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t \u0111o\u1ea1n 2f.","D. n\u1eb1m c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t \u0111o\u1ea1n nh\u1ecf h\u01a1n f."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3468},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Khi v\u1eadt \u0111\u1eb7t r\u1ea5t xa th\u1ea5u k\u00ednh th\u00ec \u1ea3nh th\u1eadt c\u00f3 v\u1ecb tr\u00ed c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng b\u1eb1ng: ","select":["A. 2F","B. F","C. 3F","D. 4F"],"hint":"","explain":"<span class='basic_left'> Khi v\u1eadt \u0111\u1eb7t r\u1ea5t xa th\u1ea5u k\u00ednh th\u00ec \u1ea3nh th\u1eadt c\u00f3 v\u1ecb tr\u00ed c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng b\u1eb1ng ti\u00eau c\u1ef1.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3469},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"V\u1eadt \u0111\u1eb7t trong kho\u1ea3ng ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u00ec? ","select":["A. Cho \u1ea3nh \u1ea3o, l\u1edbn h\u01a1n v\u1eadt v\u00e0 ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt.","B. Cho \u1ea3nh \u1ea3o, nh\u1ecf h\u01a1n v\u1eadt v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","C. Cho \u1ea3nh th\u1eadt, l\u1edbn h\u01a1n v\u1eadt v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","D. Cho \u1ea3nh \u1ea3o, l\u1edbn h\u01a1n v\u1eadt v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt."],"hint":"","explain":"<span class='basic_left'> <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3470}],"lesson":{"save":0,"level":2}}