{"segment":[{"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":"M\u00e1y \u1ea3nh g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh: ","select":["A. Bu\u1ed3ng t\u1ed1i, k\u00ednh m\u00e0u, ch\u1ed7 \u0111\u1eb7t phim.","B. Bu\u1ed3ng t\u1ed1i, v\u1eadt k\u00ednh, ch\u1ed7 \u0111\u1eb7t phim.","C. V\u1eadt k\u00ednh, k\u00ednh m\u00e0u, ch\u1ed7 \u0111\u1eb7t phim.","D. V\u1eadt k\u00ednh, k\u00ednh m\u00e0u, ch\u1ed7 \u0111\u1eb7t phim, bu\u1ed3ng t\u1ed1i."],"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":3511},{"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 c\u1ee7a m\u1ed9t v\u1eadt tr\u00ean phim trong m\u00e1y \u1ea3nh l\u00e0: ","select":["A. \u1ea2nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. \u1ea2nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","C. \u1ea2nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","D. \u1ea2nh \u1ea3o, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 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 D.<\/span><\/span> ","column":2}]}],"id_ques":3512},{"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":"B\u1ed9 ph\u1eadn quang h\u1ecdc c\u1ee7a m\u00e1y \u1ea3nh l\u00e0: ","select":["A. V\u1eadt k\u00ednh.","B. Phim.","C. Bu\u1ed3ng t\u1ed1i.","D. B\u1ed9 ph\u1eadn \u0111o \u0111\u1ed9 s\u00e1ng."],"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":3513},{"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\u1eadt k\u00ednh c\u1ee7a m\u00e1y \u1ea3nh s\u1eed d\u1ee5ng: ","select":["A. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.","B. Th\u1ea5u k\u00ednh ph\u00e2n k\u1ef3.","C. G\u01b0\u01a1ng ph\u1eb3ng.","D. G\u01b0\u01a1ng c\u1ea7u."],"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":3514},{"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":"M\u1ed9t m\u00e1y \u1ea3nh c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n b\u1ed9 ph\u1eadn ","select":["A. bu\u1ed3ng t\u1ed1i, phim.","B. bu\u1ed3ng t\u1ed1i, v\u1eadt k\u00ednh.","C. b\u1ed9 ph\u1eadn \u0111o \u0111\u1ed9 s\u00e1ng.","D. v\u1eadt 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":2}]}],"id_ques":3515},{"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":"\u1ea2nh c\u1ee7a m\u00f4\u0323t v\u1eadt trong m\u00e1y \u1ea3nh co\u0301 v\u1ecb tr\u00ed ","select":["A. n\u1eb1m s\u00e1t v\u1eadt k\u00ednh.","B. n\u1eb1m tr\u00ean v\u1eadt k\u00ednh.","C. n\u1eb1m tr\u00ean phim.","D. n\u1eb1m s\u00e1t phim."],"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":3516},{"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":"Khi v\u1eadt ti\u1ebfn l\u1ea1i g\u1ea7n m\u00e1y \u1ea3nh th\u00ec ","select":["A. \u1ea3nh to d\u1ea7n.","B. \u1ea3nh nh\u1ecf d\u1ea7n.","C. \u1ea3nh kh\u00f4ng thay \u0111\u1ed5i v\u1ec1 k\u00edch th\u01b0\u1edbc.","D. \u1ea3nh kh\u00f4ng thay \u0111\u1ed5i v\u1ecb tr\u00ed so v\u1edbi v\u1eadt k\u00ednh."],"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":3517},{"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":"Phim trong m\u00e1y \u1ea3nh c\u00f3 ch\u1ee9c n\u0103ng ","select":["A. t\u1ea1o ra \u1ea3nh th\u1eadt c\u1ee7a v\u1eadt.","B. t\u1ea1o ra \u1ea3nh \u1ea3o c\u1ee7a v\u1eadt.","C. ghi l\u1ea1i \u1ea3nh \u1ea3o c\u1ee7a v\u1eadt.","D. ghi l\u1ea1i \u1ea3nh th\u1eadt c\u1ee7a 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":3518},{"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":" Bu\u1ed3ng t\u1ed1i c\u1ee7a m\u00e1y \u1ea3nh c\u00f3 ch\u1ee9c n\u0103ng ","select":["A. \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng \u00e1nh s\u00e1ng v\u00e0o m\u00e1y.","B. kh\u00f4ng cho \u00e1nh s\u00e1ng l\u1ecdt v\u00e0o m\u00e1y. ","C. ghi l\u1ea1i \u1ea3nh c\u1ee7a v\u1eadt.","D. t\u1ea1o \u1ea3nh th\u1eadt c\u1ee7a 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":3519},{"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 ch\u1ee5p \u1ea3nh b\u1eb1ng m\u00e1y \u1ea3nh c\u01a1 h\u1ecdc ng\u01b0\u1eddi th\u1ee3 th\u01b0\u1eddng \u0111i\u1ec1u ch\u1ec9nh \u1ed1ng k\u00ednh m\u00e1y \u1ea3nh v\u1edbi m\u1ee5c \u0111\u00edch ","select":["A. thay \u0111\u1ed5i ti\u00eau c\u1ef1 c\u1ee7a \u1ed1ng k\u00ednh.","B. thay \u0111\u1ed5i kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt \u0111\u1ebfn m\u1eaft. ","C. thay \u0111\u1ed5i kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim. ","D. thay \u0111\u1ed5i kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt \u0111\u1ebfn phim."],"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":3520},{"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":"Trong m\u00e1y \u1ea3nh, \u0111\u1ec3 cho \u1ea3nh c\u1ee7a v\u1eadt c\u1ea7n ch\u1ee5p hi\u1ec7n r\u00f5 n\u00e9t tr\u00ean phim, ng\u01b0\u1eddi ta th\u01b0\u1eddng ","select":["A. thay \u0111\u1ed5i ti\u00eau c\u1ef1 c\u1ee7a v\u1eadt k\u00ednh v\u00e0 gi\u1eef phim, v\u1eadt k\u00ednh \u0111\u1ee9ng y\u00ean.","B. thay \u0111\u1ed5i kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim b\u1eb1ng c\u00e1ch \u0111\u01b0a v\u1eadt k\u00ednh ra xa ho\u1eb7c l\u1ea1i g\u1ea7n phim. ","C. thay \u0111\u1ed5i kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim b\u1eb1ng c\u00e1ch \u0111\u01b0a phim ra xa ho\u1eb7c l\u1ea1i g\u1ea7n v\u1eadt k\u00ednh.","D. \u0111\u1ed3ng th\u1eddi thay \u0111\u1ed5i v\u1ecb tr\u00ed c\u1ee7a c\u1ea3 v\u1eadt k\u00ednh v\u00e0 phim."],"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":3521},{"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":"G\u1ecdi f l\u00e0 ti\u00eau c\u1ef1 v\u1eadt k\u00ednh c\u1ee7a m\u00e1y \u1ea3nh. \u0110\u1ec3 ch\u1ee5p \u0111\u01b0\u1ee3c \u1ea3nh c\u1ee7a m\u1ed9t v\u1eadt tr\u00ean phim, ta ph\u1ea3i \u0111\u1eb7t v\u1eadt c\u00e1ch v\u1eadt k\u00ednh m\u1ed9t kho\u1ea3ng d sao cho ","select":["A. d < f.","B. d = f.","C. f < d < 2f.","D. d > 2f."],"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":3522},{"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":"\u0110\u1ec3 ch\u1ee5p \u1ea3nh c\u1ee7a m\u1ed9t v\u1eadt \u1edf r\u1ea5t xa, c\u1ea7n ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh v\u1eadt k\u00ednh \u0111\u1ec3 ","select":["A. ti\u00eau \u0111i\u1ec3m v\u1eadt k\u00ednh n\u1eb1m r\u1ea5t xa phim.","B. ti\u00eau \u0111i\u1ec3m v\u1eadt k\u00ednh n\u1eb1m \u1edf ph\u00eda sau phim.","C. ti\u00eau \u0111i\u1ec3m v\u1eadt k\u00ednh n\u1eb1m tr\u00ean phim.","D. ti\u00eau \u0111i\u1ec3m v\u1eadt k\u00ednh n\u1eb1m \u1edf ph\u00eda tr\u01b0\u1edbc phim."],"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":3523},{"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":"Khi ch\u1ee5p \u1ea3nh m\u1ed9t v\u1eadt cao 1,5m \u0111\u1eb7t c\u00e1ch m\u00e1y \u1ea3nh 6m. Bi\u1ebft kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim l\u00e0 4cm. Chi\u1ec1u cao \u1ea3nh c\u1ee7a v\u1eadt tr\u00ean phim l\u00e0 ","select":["A. 1cm. ","B. 1,5cm.","C. 2cm.","D. 2,5cm."],"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":3524},{"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 ch\u1ee5p \u1ea3nh m\u1ed9t v\u1eadt cao 1m \u0111\u1eb7t c\u00e1ch m\u00e1y \u1ea3nh 2m. \u1ea2nh c\u1ee7a v\u1eadt tr\u00ean phim c\u00f3 \u0111\u1ed9 cao 2,5cm th\u00ec kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim l\u00e0: ","select":["A. 1,25cm.","B. 2cm.","C. 2,5cm.","D. 5cm."],"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":3525},{"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":"\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt tr\u00ean phim trong m\u00e1y \u1ea3nh b\u00ecnh th\u01b0\u1eddng l\u00e0: ","select":["A. \u1ea2nh th\u1eadt, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","B. \u1ea2nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","C. \u1ea2nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.","D. \u1ea2nh \u1ea3o, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt."],"hint":"","explain":"<span class='basic_left'>\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt tr\u00ean phim: <br\/>\u1ea2nh c\u1ee7a v\u1eadt tr\u00ean phim lu\u00f4n l\u00e0 \u1ea3nh th\u1eadt, ng\u01b0\u1ee3c chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":3526},{"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 ch\u1ee5p \u1ea3nh m\u1ed9t v\u1eadt \u0111\u1eb7t c\u00e1ch m\u00e1y \u1ea3nh 9m. \u1ea2nh c\u1ee7a v\u1eadt tr\u00ean phim c\u00f3 \u0111\u1ed9 cao 1,5cm; kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim l\u00e0 4,5cm. Chi\u1ec1u cao v\u1eadt l\u00e0: ","select":["A. 1m.","B. 2m.","C. 3m.","D. 6m."],"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":3527},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ec9 ra c\u00e2u sai. M\u00e1y \u1ea3nh cho ph\u00e9p ta l\u00e0m \u0111\u01b0\u1ee3c nh\u1eefng g\u00ec? ","select":["A. T\u1ea1o \u1ea3nh th\u1eadt c\u1ee7a v\u1eadt, nh\u1ecf h\u01a1n v\u1eadt.","B. Ghi l\u1ea1i \u1ea3nh th\u1eadt \u0111\u00f3 tr\u00ean phim ho\u1eb7c b\u1ed9 ph\u00e2n ghi \u1ea3nh.","C. Th\u00e1o phim ho\u1eb7c b\u1ed9 ph\u1eadn ghi \u1ea3nh ra kho\u1ea3i m\u00e1y.","D. Ph\u00f3ng to v\u00e0 in \u1ea3nh trong phim ho\u1eb7c b\u1ed9 ph\u1eadn ghi \u1ea3nh tr\u00ean gi\u1ea5y."],"hint":"","explain":"<span class='basic_left'>M\u00e1y \u1ea3nh cho ph\u00e9p ta l\u00e0m \u0111\u01b0\u1ee3c: <br\/>- T\u1ea1o \u1ea3nh th\u1eadt c\u1ee7a v\u1eadt, nh\u1ecf h\u01a1n v\u1eadt. <br\/>- Ghi l\u1ea1i \u1ea3nh th\u1eadt \u0111\u00f3 tr\u00ean phim ho\u1eb7c b\u1ed9 ph\u00e2n ghi \u1ea3nh. <br\/>- Th\u00e1o phim ho\u1eb7c b\u1ed9 ph\u1eadn ghi \u1ea3nh ra kho\u1ea3i m\u00e1y.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3528},{"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\u1eadt k\u00ednh m\u00e1y \u1ea3nh l\u00e0 lo\u1ea1i th\u1ea5u k\u00ednh g\u00ec v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u g\u00ec? ","select":["A. L\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng thu\u1ef7 tinh.","B. L\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng nh\u1ef1a trong.","C. L\u00e0 th\u1ea5u k\u00ednh ph\u00e2n k\u00ec v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng thu\u1ef7 tinh.","D. L\u00e0 th\u1ea5u k\u00ednh ph\u00e2n k\u00ec v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng nh\u1ef1a trong."],"hint":"","explain":"<span class='basic_left'>V\u1eadt k\u00ednh m\u00e1y \u1ea3nh l\u00e0 lo\u1ea1i th\u1ea5u k\u00ednh g\u00ec v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u: <br\/>L\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 v\u00e0 th\u01b0\u1eddng l\u00e0m b\u1eb1ng thu\u1ef7 tinh.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3529},{"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 ch\u1ee5p \u1ea3nh m\u1ed9t v\u1eadt cao 4m. \u1ea2nh c\u1ee7a v\u1eadt tr\u00ean phim c\u00f3 \u0111\u1ed9 cao 2cm; kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt k\u00ednh \u0111\u1ebfn phim l\u00e0 4,5cm. Kho\u1ea3ng c\u00e1ch v\u1eadt \u0111\u1ebfn m\u00e1y \u1ea3nh l\u00e0: ","select":["A. 2m.","B. 7,2m.","C. 8m.","D. 9m."],"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":3530}],"lesson":{"save":0,"level":2}}