{"segment":[{"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":"C\u00f3 th\u1ec3 d\u00f9ng k\u00ednh l\u00fap \u0111\u1ec3 quan s\u00e1t v\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? ","select":["A. M\u1ed9t ng\u00f4i sao","B. M\u1ed9t con vi tr\u00f9ng","C. M\u1ed9t con ki\u1ebfn","D. M\u1ed9t b\u1ee9c tranh phong c\u1ea3nh"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ec3 s\u1eed d\u1ee5ng k\u00ednh l\u00fap ph\u1ea3i th\u1ecfa m\u00e3n: <br\/>V\u1eadt n\u1eb1m trong kho\u1ea3ng ti\u00eau c\u1ef1 c\u1ee7a k\u00ednh sao cho thu \u0111\u01b0\u1ee3c \u1ea3nh \u1ea3o l\u1edbn h\u01a1n v\u1eadt <br\/>\u1ea2nh n\u1eb1m trong kho\u1ea3ng nh\u00ecn r\u00f5 c\u1ee7a m\u1eaft<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3571},{"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":" Th\u1ea5u k\u00ednh n\u00e0o d\u01b0\u1edbi \u0111\u00e2y c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m k\u00ednh l\u00fap ?","select":["A. Th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 ti\u00eau c\u1ef1 10 cm.","B. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 10 cm.","C. Th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 ti\u00eau c\u1ef1 50 cm.","D. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 50 cm"],"hint":"","explain":"<span class='basic_left'>K\u00ednh l\u00fap l\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 ng\u1eafn <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3572},{"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":"Ai trong s\u1ed1 c\u00e1c ng\u01b0\u1eddi k\u1ec3 d\u01b0\u1edbi \u0111\u00e2y kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng k\u00ednh l\u00fap trong c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh? ","select":["A. M\u1ed9t ng\u01b0\u1eddi th\u1ee3 s\u1eeda \u0111\u1ed3ng h\u1ed3.","B. M\u1ed9t nh\u00e0 \u0111\u1ecba ch\u1ea5t nghi\u00ean c\u1ee9u s\u01a1 b\u1ed9 m\u1ed9t m\u1eabu qu\u1eb7ng","C. M\u1ed9t h\u1ecdc sinh \u0111ang \u0111\u1ecdc s\u00e1ch gi\u00e1o khoa","D. M\u1ed9t nh\u00e0 n\u00f4ng nghi\u00ean c\u1ee9u v\u1ec1 s\u00e2u b\u1ecd."],"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":3573},{"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":"Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 n\u00e0o d\u01b0\u1edbi \u0111\u00e2y kh\u00f4ng th\u1ec3 d\u00f9ng l\u00e0m k\u00ednh l\u00fap \u0111\u01b0\u1ee3c? ","select":["A. 10cm","B. 15cm","C. 5cm","D. 25cm"],"hint":"","explain":"<span class='basic_left'>Do s\u1ed1 b\u1ed9i gi\u00e1c nh\u1ecf nh\u1ea5t c\u1ee7a k\u00ednh l\u00fap l\u00e0 1,5x cho n\u00ean ti\u00eau c\u1ef1 d\u00e0i nh\u1ea5t c\u1ee7a k\u00ednh l\u00fap g\u1ea7n b\u1eb1ng 16,7 cm.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3574},{"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":"Tr\u00ean v\u00e0nh c\u1ee7a m\u1ed9t k\u00ednh l\u00fap c\u00f3 ghi \u201c3,5x\u201d. s\u1ed1 n\u00e0y cho bi\u1ebft: ","select":["A. Ti\u00eau c\u1ef1 c\u1ee7a k\u00ednh l\u00fap l\u00e0 3,5cm.","B. Kho\u1ea3ng c\u00e1ch l\u1edbn nh\u1ea5t t\u1eeb v\u1eadt \u0111\u1ebfn k\u00ednh l\u00fap l\u00e0 3,5cm.","C. S\u1ed1 b\u1ed9i gi\u00e1c c\u1ee7a k\u00ednh l\u00fap l\u00e0 3,5.","D. Kho\u1ea3ng c\u00e1ch nh\u1ecf nh\u1ea5t t\u1eeb v\u1eadt \u0111\u1ebfn k\u00ednh l\u00fap l\u00e0 3,5cm."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3575},{"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":"Th\u1ea5u k\u00ednh n\u00e0o d\u01b0\u1edbi \u0111\u00e2y c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m k\u00ednh l\u00fap? ","select":["A. Th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 ti\u00eau c\u1ef1 10 cm.","B. Th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 ti\u00eau c\u1ef1 50cm.","C. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 50cm.","D. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 10cm."],"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":3576},{"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":"S\u1ed1 ghi tr\u00ean v\u00e0nh c\u1ee7a m\u1ed9t k\u00ednh l\u00fap l\u00e0 5x. Ti\u00eau c\u1ef1 k\u00ednh l\u00fap c\u00f3 gi\u00e1 tr\u1ecb l\u00e0 ","select":["A. f = 5m.","B. f = 5cm.","C. f = 5mm.","D. f = 5dm."],"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":3577},{"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":"C\u00f3 th\u1ec3 d\u00f9ng k\u00ednh l\u00fap \u0111\u1ec3 quan s\u00e1t ","select":["A. Tr\u1eadn b\u00f3ng \u0111\u00e1 tr\u00ean s\u00e2n v\u1eadn \u0111\u1ed9ng.","B. M\u1ed9t con vi tr\u00f9ng.","C. C\u00e1c chi ti\u1ebft m\u00e1y c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111eo tay.","D. K\u00edch th\u01b0\u1edbc c\u1ee7a nguy\u00ean t\u1eed."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3578},{"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":"Ph\u00e1t bi\u1ec3u \u0111\u00fang trong c\u00e1c ph\u00e1t bi\u1ec3u sau \u0111\u00e2y khi n\u00f3i v\u1ec1 k\u00ednh l\u00fap l\u00e0: ","select":["A. K\u00ednh l\u00fap l\u00e0 d\u1ee5ng c\u1ee5 b\u1ed5 tr\u1ee3 cho m\u1eaft khi quan s\u00e1t c\u00e1c con vi khu\u1ea9n.","B. K\u00ednh l\u00fap th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ti\u00eau c\u1ef1 ng\u1eafn.","C. S\u1eed d\u1ee5ng k\u00ednh l\u00fap gi\u00fap ta quan s\u00e1t r\u00f5 h\u01a1n \u1ea3nh th\u1eadt c\u1ee7a nh\u1eefng v\u1eadt nh\u1ecf.","D. K\u00ednh l\u00fap th\u1ef1c ch\u1ea5t l\u00e0 th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 ti\u00eau c\u1ef1 ng\u1eafn."],"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":3579},{"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 ng\u01b0\u1eddi quan s\u00e1t m\u1ed9t v\u1eadt nh\u1ecf b\u1eb1ng k\u00ednh l\u00fap, ng\u01b0\u1eddi \u1ea5y ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ","select":["A. \u1ea3nh c\u1ee7a v\u1eadt l\u00e0 \u1ea3nh \u1ea3o c\u00f9ng chi\u1ec1u, l\u1edbn h\u01a1n v\u1eadt.","B. \u1ea3nh c\u1ee7a v\u1eadt l\u00e0 \u1ea3nh th\u1eadt c\u00f9ng chi\u1ec1u, l\u1edbn h\u01a1n v\u1eadt.","C. \u1ea3nh c\u1ee7a v\u1eadt l\u00e0 \u1ea3nh \u1ea3o, ng\u01b0\u1ee3c chi\u1ec1u, l\u1edbn h\u01a1n v\u1eadt.","D. \u1ea3nh c\u1ee7a v\u1eadt l\u00e0 \u1ea3nh \u1ea3o c\u00f9ng chi\u1ec1u, nh\u1ecf 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":3580},{"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":"Nh\u1eadn \u0111\u1ecbnh n\u00e0o kh\u00f4ng \u0111\u00fang? <br\/>Quan s\u00e1t m\u1ed9t v\u1eadt nh\u1ecf qua k\u00ednh l\u00fap, ta s\u1ebd nh\u00ecn th\u1ea5y ","select":["A. \u1ea2nh c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt.","B. \u1ea2nh l\u1edbn h\u01a1n v\u1eadt.","C. \u1ea2nh \u1ea3o.","D. \u1ea2nh th\u1eadt 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 D.<\/span><\/span> ","column":2}]}],"id_ques":3581},{"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":"K\u00ednh l\u00fap l\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 ","select":["A. ti\u00eau c\u1ef1 d\u00e0i d\u00f9ng \u0111\u1ec3 quan s\u00e1t c\u00e1c v\u1eadt nh\u1ecf.","B. ti\u00eau c\u1ef1 d\u00e0i d\u00f9ng \u0111\u1ec3 quan s\u00e1t c\u00e1c v\u1eadt c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.","C. ti\u00eau c\u1ef1 ng\u1eafn d\u00f9ng \u0111\u1ec3 quan s\u00e1t c\u00e1c v\u1eadt nh\u1ecf.","D. ti\u00eau c\u1ef1 ng\u1eafn d\u00f9ng \u0111\u1ec3 quan s\u00e1t c\u00e1c v\u1eadt l\u1edbn."],"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":3582},{"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":"Trong c\u00e1c k\u00ednh l\u00fap sau, k\u00ednh l\u00fap n\u00e0o khi d\u00f9ng \u0111\u1ec3 quan s\u00e1t m\u1ed9t v\u1eadt s\u1ebd cho \u1ea3nh l\u1edbn nh\u1ea5t? ","select":["A. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c G = 5.","B. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c G = 5,5.","C. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c G = 6.","D. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c G = 4."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3583},{"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":"Khi quan s\u00e1t m\u1ed9t v\u1eadt qua k\u00ednh l\u00fap, ta quan s\u00e1t \u0111\u01b0\u1ee3c ","select":["A. Tr\u1ef1c ti\u1ebfp v\u1eadt.","B. \u1ea2nh th\u1eadt c\u1ee7a v\u1eadt c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n v\u1eadt.","C. \u1ea2nh \u1ea3o c\u1ee7a v\u1eadt c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n v\u1eadt.","D. \u1ea2nh th\u1eadt c\u1ee7a v\u1eadt c\u00f3 k\u00edch th\u01b0\u1edbc 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 C.<\/span><\/span> ","column":1}]}],"id_ques":3584},{"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":"S\u1ed1 b\u1ed9i gi\u00e1c v\u00e0 ti\u00eau c\u1ef1 ( \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb xentimet ) c\u1ee7a m\u1ed9t k\u00ednh l\u00fap c\u00f3 h\u1ec7 th\u1ee9c: ","select":["A. $G=25f$ ","B. $G=\\dfrac{25}{\\text{f}}$","C. G = 25 + f","D. G = 25 \u2013 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":3585},{"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":"Tr\u00ean hai k\u00ednh l\u00fap l\u1ea7n l\u01b0\u1ee3t c\u00f3 ghi \u201c2x\u201d v\u00e0 \u201c3x\u201d th\u00ec ","select":["A. C\u1ea3 hai k\u00ednh l\u00fap c\u00f3 ghi \u201c2x\u201d v\u00e0 \u201c3x\u201d c\u00f3 ti\u00eau c\u1ef1 b\u1eb1ng nhau.","B. K\u00ednh l\u00fap c\u00f3 ghi \u201c3x\u201d c\u00f3 ti\u00eau c\u1ef1 l\u1edbn h\u01a1n k\u00ednh l\u00fap c\u00f3 ghi \u201c2x\u201d.","C. K\u00ednh l\u00fap c\u00f3 ghi \u201c2x\u201d c\u00f3 ti\u00eau c\u1ef1 l\u1edbn h\u01a1n k\u00ednh l\u00fap c\u00f3 ghi \u201c3x\u201d. ","D. Kh\u00f4ng th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh \u0111\u01b0\u1ee3c ti\u00eau c\u1ef1 c\u1ee7a k\u00ednh l\u00fap n\u00e0o l\u1edbn h\u01a1n."],"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":3586},{"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":"k\u00ednh l\u00fap c\u00f3 \u0111\u1ed9 b\u1ed9i gi\u00e1c G = 5, ti\u00eau c\u1ef1 f c\u1ee7a k\u00ednh l\u00fap \u0111\u00f3 l\u00e0 ","select":["A. 5cm. ","B. 10cm.","C. 20cm.","D. 30cm."],"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":3587},{"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 quan s\u00e1t m\u1ed9t v\u1eadt b\u1eb1ng k\u00ednh l\u00fap, \u0111\u1ec3 m\u1eaft nh\u00ecn th\u1ea5y m\u1ed9t \u1ea3nh \u1ea3o l\u1edbn h\u01a1n v\u1eadt ta c\u1ea7n ph\u1ea3i ","select":["A. \u0111\u1eb7t v\u1eadt ngo\u00e0i kho\u1ea3ng ti\u00eau c\u1ef1.","B. \u0111\u1eb7t v\u1eadt trong kho\u1ea3ng ti\u00eau c\u1ef1.","C. \u0111\u1eb7t v\u1eadt s\u00e1t v\u00e0o m\u1eb7t k\u00ednh.","D. \u0111\u1eb7t v\u1eadt b\u1ea5t c\u1ee9 v\u1ecb tr\u00ed n\u00e0o."],"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":3588},{"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":"D\u00f9ng k\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 4x v\u00e0 k\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 5x \u0111\u1ec3 quan s\u00e1t c\u00f9ng m\u1ed9t v\u1eadt v\u00e0 v\u1edbi c\u00f9ng \u0111i\u1ec1u ki\u1ec7n th\u00ec: ","select":["A. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 4x th\u1ea5y \u1ea3nh l\u1edbn h\u01a1n k\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 5x.","B. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 4x th\u1ea5y \u1ea3nh nh\u1ecf h\u01a1n k\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 5x.","C. K\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 4x th\u1ea5y \u1ea3nh b\u1eb1ng k\u00ednh l\u00fap c\u00f3 s\u1ed1 b\u1ed9i gi\u00e1c 5x.","D. Kh\u00f4ng so s\u00e1nh \u0111\u01b0\u1ee3c \u1ea3nh c\u1ee7a hai k\u00ednh l\u00fap \u0111\u00f3."],"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":3589},{"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":"S\u1ed1 b\u1ed9i gi\u00e1c c\u1ee7a k\u00ednh l\u00fap ","select":["A. c\u00e0ng l\u1edbn th\u00ec ti\u00eau c\u1ef1 c\u00e0ng l\u1edbn.","B. c\u00e0ng nh\u1ecf th\u00ec ti\u00eau c\u1ef1 c\u00e0ng nh\u1ecf.","C. v\u00e0 ti\u00eau c\u1ef1 t\u1ec9 l\u1ec7 thu\u1eadn.","D. c\u00e0ng l\u1edbn th\u00ec ti\u00eau c\u1ef1 c\u00e0ng nh\u1ecf."],"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":3590}],"lesson":{"save":0,"level":2}}