{"segment":[{"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":"D\u00f2ng \u0111i\u1ec7n l\u00e0 d\u00f2ng:","select":["A. D\u00f2ng c\u00e1c \u0111i\u1ec7n t\u00edch d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng","B. D\u00f2ng c\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m d\u1ecbch chuy\u1ec3n v\u00f4 h\u01b0\u1edbng","C. D\u00f2ng c\u00e1c \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng d\u1ecbch chuy\u1ec3n v\u00f4 h\u01b0\u1edbng","D. T\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n tr\u00ean"],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n l\u00e0 d\u00f2ng c\u00e1c \u0111i\u1ec7n t\u00edch d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2391},{"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\u00e8n \u0111i\u1ec7n s\u00e1ng, qu\u1ea1t \u0111i\u1ec7n quay, m\u00e1y b\u01a1m ch\u1ea1y khi :","select":["A. C\u00f3 gi\u00f3 th\u1ed5i","B. C\u00f3 nhi\u1ec7t \u0111\u1ed9 cao","C. C\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua","D. C\u00f3 m\u1eb7t tr\u1eddi"],"hint":"","explain":"<span class='basic_left'>\u0110\u00e8n \u0111i\u1ec7n s\u00e1ng, qu\u1ea1t \u0111i\u1ec7n quay, m\u00e1y b\u01a1m ch\u1ea1y khi c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2392},{"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":"Ch\u1ecdn c\u00e2u \u0111\u00fang: ","select":["A. Ch\u1ec9 c\u00f3 c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng chuy\u1ec3n \u0111\u1ed9ng c\u00f3 h\u01b0\u1edbng m\u1edbi t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n.","B. Ch\u1ec9 c\u00f3 c\u00e1c electron chuy\u1ec3n \u0111\u1ed9ng c\u00f3 h\u01b0\u1edbng m\u1edbi t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n.","C. Ch\u1ec9 khi n\u00e0o c\u00f3 c\u1ea3 \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng v\u00e0 \u00e2m chuy\u1ec3n \u0111\u1ed9ng c\u00f3 h\u01b0\u1edbng th\u00ec m\u1edbi t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n","D. T\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n tr\u00ean \u0111\u1ec1u sai."],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n l\u00e0 d\u00f2ng c\u00e1c \u0111i\u1ec7nt \u00edch chuy\u1ec3n d\u1ecbch c\u00f3 h\u01b0\u1edbng, ch\u1ec9 c\u1ea7n l\u00e0 d\u00f2ng \u0111i\u1ec7n t\u00edch d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng d\u00f9 l\u00e0 d\u01b0\u01a1ng hay \u00e2m th\u00ec c\u0169ng s\u1ebd t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2393},{"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\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 chuy\u1ec3n d\u1eddi trong v\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y:","select":["A. S\u1ee9.","B. Kim lo\u1ea1i. ","C. G\u1ed7 kh\u00f4.","D. V\u1ea3i kh\u00f4."],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 chuy\u1ec3n d\u1eddi trong kim lo\u1ea1i, hay c\u00f3 th\u1ec3 n\u00f3i l\u00e0 kim lo\u1ea1i d\u1eabn \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2394},{"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":"Ngu\u1ed3n \u0111i\u1ec7n l\u00e0 thi\u1ebft b\u1ecb:","select":["A. C\u00f3 hai c\u1ef1c \u00e2m d\u01b0\u01a1ng.","B. C\u00f3 m\u1ed9t c\u1ef1c duy nh\u1ea5t.","C. Ch\u1ec9 c\u00f3 c\u1ef1c \u00e2m.","D. Ch\u1ec9 c\u00f3 c\u1ef1c d\u01b0\u01a1ng."],"hint":"","explain":"<span class='basic_left'>Ngu\u1ed3n \u0111i\u1ec7n l\u00e0 thi\u1ebft b\u1ecb c\u00f3 hai c\u1ef1c \u00e2m d\u01b0\u01a1ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2395},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ph\u00e1t bi\u1ec3u n\u00e0o sau \u0111\u00e2y l\u00e0 kh\u00f4ng ch\u00ednh x\u00e1c:","select":["A. Ngu\u1ed3n \u0111i\u1ec7n l\u00e0 ngu\u1ed3n cung c\u1ea5p d\u00f2ng \u0111i\u1ec7n l\u00e2u d\u00e0i \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng.","B. Ngu\u1ed3n \u0111i\u1ec7n c\u00f3 hai c\u1ef1c: \u00e2m v\u00e0 d\u01b0\u01a1ng.","C. B\u00f3ng \u0111\u00e8n b\u00fat th\u1eed \u0111i\u1ec7n s\u00e1ng ch\u1ee9ng t\u1ecf c\u00f3 \u0111i\u1ec7n t\u00edch d\u1ecbch chuy\u1ec3n qua n\u00f3.","D. Ngu\u1ed3n \u0111i\u1ec7n do nhi\u1ec7t t\u1ea1o ra."],"hint":"","explain":"<span class='basic_left'>Ngu\u1ed3n \u0111i\u1ec7n \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh do ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc b\u00ean trong ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2396},{"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":"Thi\u1ebft b\u1ecb n\u00e0o sau \u0111\u00e2y l\u00e0 ngu\u1ed3n \u0111i\u1ec7n:","select":["A. Qu\u1ea1t \u0111i\u1ec7n.","B. Accquy.","C. \u0110\u00e8n pin.","D. B\u1ebfp l\u1eeda."],"hint":"","explain":"<span class='basic_left'>Accquy l\u00e0 ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2397},{"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":"\u1ede c\u00e1c xe \u0111\u1ea1p c\u00f3 g\u0103n th\u00eam \u0111inamo, khi b\u00e1nh xe quay, \u0111inamo quay theo v\u00e0 l\u00e0m ph\u00e1t ra d\u00f2ng \u0111i\u1ec7n l\u00e0m s\u00e1ng c\u00e1c b\u00f3ng \u0111\u00e8n. Tuy nhi\u00ean, \u1edf m\u1ed9t s\u1ed1 xe n\u1ebfu quan s\u00e1t k\u0129 ta th\u1ea5y ch\u1ec9 c\u00f3 m\u1ed9t s\u1ee3i d\u00e2y \u0111\u01b0\u1ee3c n\u1ed1i t\u1eeb \u0111inamo \u0111\u1ebfn b\u00f3ng \u0111\u00e8n. S\u1edf d\u0129 nh\u01b0 v\u1eady l\u00e0 v\u00ec: ","select":["A. \u0110inamo th\u1ef1c ch\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n. ","B. \u0110inamo l\u00e0 ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t c\u1ef1c, ch\u1ec9 c\u1ea7n m\u1ed9t d\u00e2y n\u1ed1i \u0111\u1ebfn b\u00f3ng \u0111\u00e8n l\u00e0 \u0111\u00e8n s\u00e1ng.","C. \u0110inamo l\u00e0 ngu\u1ed3n \u0111i\u1ec7n c\u00f3 hai c\u1ef1c nh\u01b0 ngu\u1ed3n \u0111i\u1ec7n kh\u00e1c, d\u00e2y th\u1ee9 hai l\u00e0 s\u01b0\u1eddn xe \u0111\u1ea1p.","D. C\u00e1c l\u1eadp lu\u1eadn tr\u00ean \u0111\u1ec1u sai."],"hint":"","explain":"<span class='basic_left'>D\u00e2y th\u1ee9 2 n\u1ed1i v\u1edbi s\u01b0\u1eddn xe \u0111\u1ea1p \u0111\u00f3ng vai tr\u00f2 l\u00e0 d\u00e2y \u00e2m.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2398},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai19/lv2/img\/h0.jpg'\/><\/center>M\u1ea1ch \u0111i\u1ec7n l\u00e0m cho b\u00f3ng \u0111\u00e8n s\u00e1ng l\u00e0:","select":["A. 1,2","B. 2,3","C. 1,3","D. 3,4"],"hint":"","explain":"<span class='basic_left'>Ph\u1ea3i c\u00f3 2 d\u00e2y n\u1ed1i 1 d\u00e2y t\u1eeb \u0111\u00e1y b\u00f3ng \u0111\u00e8n \u0111\u1ebfn 1 c\u1ef1c c\u1ee7a pin, 1 d\u00e2y n\u1ed1i t\u1eeb ph\u1ea7n \u1edf gi\u1eefa c\u1ee7a \u0111\u00e8n \u0111\u1ebfn c\u1ef1c c\u00f2n l\u1ea1i c\u1ee7a pin.<br\/> 1: 1 d\u00e2y n\u1ed1i v\u00e0o b\u00f3ng => lo\u1ea1i<br\/>4: c\u1ea3 2 d\u00e2y \u0111\u1ec1u n\u1ed1i v\u00e0o ph\u1ea7n gi\u1eefa b\u00f3ng \u0111\u00e8n => lo\u1ea1i<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2399},{"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":"Hai c\u1ef1c c\u1ee7a pin v\u00e0 acquy t\u01b0\u01a1ng \u1ee9ng:","select":["A. 2 c\u1ef1c d\u01b0\u01a1ng.","B. 2 c\u1ef1c \u00e2m.","C. 2 c\u1ef1c c\u00e1ch \u0111i\u1ec7n.","D. 2 c\u1ef1c \u00e2m v\u00e0 d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n \u0111\u00f3."],"hint":"","explain":"<span class='basic_left'>Hai c\u1ef1c c\u1ee7a pin v\u00e0 acquy t\u01b0\u01a1ng \u1ee9ng 2 c\u1ef1c \u00e2m v\u00e0 d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n \u0111\u00f3.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2400},{"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":"\u0110ang c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong v\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y:","select":["A. B\u00f3ng \u0111\u00e8n \u0111\u01b0\u1ee3c n\u1ed1i b\u1edf 2 d\u00e2y trong \u0111\u00f3 1 d\u00e2y b\u1ecb chu\u1ed9t c\u1eafn \u0111\u1ee9t v\u1edbi 2 c\u1ef1c c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.","B. \u0110\u1ed3ng h\u1ed3 d\u00f9ng pin \u0111ang ch\u1ea1y.","C. Chi\u1ebfc pin tr\u00f2n \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00e1ch ri\u00eang tr\u00ean b\u00e0n.","D. \u0110om \u0111\u00f3m \u0111ang ph\u00e1t s\u00e1ng."],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n ch\u1ec9 ch\u1ea1y trong m\u1ea1ch k\u00edn => A: lo\u1ea1i<br\/>\u0110\u1ed3ng h\u1ed3 d\u00f9ng pin \u0111ang ch\u1ea1y => ph\u1ea3i c\u00f3 d\u00f2ng \u0111i\u1ec7n th\u00ec \u0111\u1ed3ng h\u1ed3 m\u1edbi ch\u1ea1y \u0111\u01b0\u1ee3c => ch\u1ecdn.<br\/> D\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch \u0111i\u1ec7n k\u00edn bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c n\u1ed1i li\u1ec1n v\u1edbi 2 c\u1ef1c c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n b\u1eb1ng d\u00e2y \u0111i\u1ec7n, C kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb \u0111i\u1ec7n => lo\u1ea1i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2401},{"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\u1ea1ch \u0111i\u1ec7n k\u00edn g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn:","select":["A. Thi\u1ebft b\u1ecb \u0111i\u1ec7n, d\u00e2y \u0111i\u1ec7n, ngu\u1ed3n \u0111i\u1ec7n.","B. Thi\u1ebft b\u1ecb \u0111i\u1ec7n, d\u00e2y \u0111i\u1ec7n.","C. Ngu\u1ed3n \u0111i\u1ec7n, d\u00e2y \u0111i\u1ec7n.","D. Thi\u1ebft b\u1ecb \u0111i\u1ec7n, ngu\u1ed3n \u0111i\u1ec7n."],"hint":"","explain":"<span class='basic_left'>M\u1ea1ch \u0111i\u1ec7n k\u00edn g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn thi\u1ebft b\u1ecb \u0111i\u1ec7n (v\u00ed d\u1ee5 nh\u01b0 b\u00f3ng \u0111\u00e8n, qu\u1ea1t \u0111i\u1ec7n,...), d\u00e2y \u0111i\u1ec7n, ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2402},{"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 n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 ngu\u1ed3n \u0111i\u1ec7n:","select":["A. Pin","B. Accquy.","C. \u0110inamo.","D. B\u00f3ng \u0111\u00e8n."],"hint":"","explain":"<span class='basic_left'>B\u00f3ng \u0111\u00e8n kh\u00f4ng ph\u1ea3i l\u00e0 ngu\u1ed3n \u0111i\u1ec7n, n\u00f3 l\u00e0 thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2403},{"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":"Ngu\u1ed3n \u0111i\u1ec7n n\u00e0o l\u00e0 ngu\u1ed3n \u0111i\u1ec7n t\u1ef1 nhi\u00ean:","select":["A. Pin","B. B\u00f3ng \u0111\u00e8n","C. C\u00e1 l\u01b0\u01a1n \u0111i\u1ec7n ","D. M\u00e1y chi\u1ebfu"],"hint":"","explain":"<span class='basic_left'>V\u00ec c\u00e1 l\u01b0\u01a1n \u0111i\u1ec7n c\u00f3 th\u1ec3 t\u1ef1 t\u1ea1o ra m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2404},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Ch\u1ecdn \u0111\u00e1p \u00e1n sai:","select":["A. C\u01a1 th\u1ec3 con ng\u01b0\u1eddi l\u00e0 ngu\u1ed3n \u0111i\u1ec7n nh\u00e2n t\u1ea1o","B. C\u01a1 th\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n sinh h\u1ecdc","C. Pin t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n nh\u00e2n t\u1ea1o","D. C\u01a1 th\u1ec3 con ng\u01b0\u1eddi l\u00e0 m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n"],"hint":"","explain":"<span class='basic_left'>V\u00ec c\u01a1 th\u1ec3 con ng\u01b0\u1eddi l\u00e0 m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n t\u1ef1 nhi\u00ean t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n sinh h\u1ecdc.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2405},{"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":"Kh\u00f4ng d\u00f9ng n\u0103ng l\u01b0\u1ee3ng n\u00e0o \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n:","select":["A. N\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi","B. N\u0103ng l\u01b0\u1ee3ng gi\u00f3","C. N\u0103ng l\u01b0\u1ee3ng c\u1ee7a c\u1ee7a d\u00f2ng n\u01b0\u1edbc \u1edf c\u00e1c \u0111\u1eadp","D. N\u0103ng l\u01b0\u1ee3ng t\u1ea1o ra t\u1eeb c\u01a1m"],"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":2406},{"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":"Thi\u1ebft b\u1ecb n\u00e0o kh\u00f4ng s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u1ec3 ch\u1ea1y?","select":["A. M\u00e1y b\u01a1m n\u01b0\u1edbc.","B. \u0110i\u1ec7n tho\u1ea1i. ","C. C\u1ed1i say l\u00faa","D. \u0110i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9 "],"hint":"","explain":"<span class='basic_left'>C\u1ed1i say l\u00faa d\u00f9ng s\u1ee9c ng\u01b0\u1eddi ho\u1eb7c \u0111\u1ed9ng v\u1eadt \u0111\u1ec3 quay.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2407},{"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 v\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y \u0111ang c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua:","select":["A. M\u1ed9t thanh th\u1ee7y tinh \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ecd x\u00e1t b\u1eb1ng nh\u1ef1a","B. M\u1ed9t chi\u1ebfc \u0111\u00e8n pin \u0111ang s\u00e1ng","C. M\u1ed9t chi\u1ebfc b\u00fat th\u1eed \u0111i\u1ec7n \u0111\u1eb7t trong qu\u1ea7y b\u00e1n h\u00e0ng","D. M\u1ed9t c\u00e1i qu\u1ea1t \u0111i\u1ec7n ch\u01b0a \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o \u1ed5 \u0111i\u1ec7n"],"hint":"","explain":"<span class='basic_left'>\u0110\u00e8n pin \u0111ang s\u00e1ng th\u00ec ph\u1ea3i c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2408},{"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":"Lo\u1ea1i n\u00e0o d\u01b0\u1edbi \u0111\u00e2y khi chuy\u1ec3n \u0111\u1ed9ng c\u00f3 h\u01b0\u1edbng th\u00ec kh\u00f4ng t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n:","select":["A. \u0110i\u1ec7n t\u00edch d\u01b0\u01a1ng.","B. \u0110i\u1ec7n t\u00edch \u00e2m.","C. C\u00e1c h\u1ea1t nh\u00e2n c\u1ee7a nguy\u00ean t\u1eed. ","D. Nguy\u00ean t\u1eed."],"hint":"","explain":"<span class='basic_left'>V\u00ec d\u00f2ng \u0111i\u1ec7n l\u00e0 d\u00f2ng c\u00e1c \u0111i\u1ec7nt \u00edch d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng, m\u00e0 nguy\u00ean t\u1eed trung h\u00f2a v\u1ec1 \u0111i\u1ec7n => kh\u00f4ng mang \u0111i\u1ec7n => kh\u00f4ng t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2409},{"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\u1ec3 m\u1ed9t b\u00f3ng \u0111\u00e8n s\u00e1ng c\u1ea7n c\u00f3:","select":["A. B\u00f3ng \u0111\u00e8n.","B. B\u00f3ng \u0111\u00e8n, ngu\u1ed3n \u0111i\u1ec7n, d\u00e2y d\u1eabn.","C. B\u00f3ng \u0111\u00e8n, d\u00e2y d\u1eabn. ","D. T\u1ea5t c\u1ea3 \u0111\u1ec1u sai"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ec3 m\u1ed9t b\u00f3ng \u0111\u00e8n s\u00e1ng c\u1ea7n c\u00f3 b\u00f3ng \u0111\u00e8n, ngu\u1ed3n \u0111i\u1ec7n, d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c n\u1ed1i th\u00e0nh m\u1ea1ch \u0111i\u1ec7n k\u00edn.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2410}],"lesson":{"save":0,"level":2}}