{"segment":[{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc k\u1ef9 b\u00e0i sau r\u1ed3i tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"<b>L\u1ed7 th\u1ee7ng t\u1ea7ng \u00d4 - D\u00f4n<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n). Ng\u01b0\u1eddi ta g\u1ecdi t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao n\u00e0y l\u00e0 t\u1ea7ng \u00f4 - d\u00f4n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/span><br\/><span class='basic_left textindent basic_size18'>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. Nguy\u00ean nh\u00e2n g\u00e2y ph\u00e1 ho\u1ea1i \u0111\u1ebfn t\u1ea7ng \u00f4 - d\u00f4n l\u00e0 ch\u1ea5t CFC do t\u1ee7 l\u1ea1nh, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, \u00f4 t\u00f4, m\u00e1y t\u00ednh, m\u00e1y c\u1ee9u h\u1ecfa th\u1ea3i ra.<\/span><br\/><span class='basic_left textindent basic_size18'>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Theo H\u1ecfi \u0111\u00e1p v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 m\u00f4i tr\u01b0\u1eddng, L\u00ea V\u0103n Khoa ch\u1ee7 bi\u00ean)<\/span><br\/><br\/><b>T\u1ea7ng \u00f4 - d\u00f4n l\u00e0 g\u00ec ?<\/b>","select":["L\u00e0 l\u1edbp kh\u00ed quy\u1ec3n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi.","L\u00e0 t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao 25 - 30km n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n).","L\u00e0 l\u1edbp kh\u00ed quy\u1ec3n cao, c\u00e1ch m\u1eb7t \u0111\u1ea5t 30 - 40km."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>L\u00e0 t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao 25 - 30km n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n).<\/b>","hint":"\u0110\u1ecdc l\u1ea1i \u0111o\u1ea1n:<br\/><b><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n).<\/span><\/b>","column":1}]}],"id_ques":641},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc k\u1ef9 b\u00e0i sau r\u1ed3i tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"<b>L\u1ed7 th\u1ee7ng t\u1ea7ng \u00d4 - D\u00f4n<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n). Ng\u01b0\u1eddi ta g\u1ecdi t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao n\u00e0y l\u00e0 t\u1ea7ng \u00f4 - d\u00f4n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/span><br\/><span class='basic_left textindent basic_size18'>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. Nguy\u00ean nh\u00e2n g\u00e2y ph\u00e1 ho\u1ea1i \u0111\u1ebfn t\u1ea7ng \u00f4 - d\u00f4n l\u00e0 ch\u1ea5t CFC do t\u1ee7 l\u1ea1nh, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, \u00f4 t\u00f4, m\u00e1y t\u00ednh, m\u00e1y c\u1ee9u h\u1ecfa th\u1ea3i ra.<\/span><br\/><span class='basic_left textindent basic_size18'>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Theo H\u1ecfi \u0111\u00e1p v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 m\u00f4i tr\u01b0\u1eddng, L\u00ea V\u0103n Khoa ch\u1ee7 bi\u00ean)<\/span><br\/><br\/>T\u1ea7ng \u00f4 - d\u00f4n c\u00f3 t\u00e1c d\u1ee5ng g\u00ec ?<\/b>","select":["H\u1ea5p th\u1ee5 90% tia h\u1ed3ng ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi.","H\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, l\u00e0m cho b\u1ec1 m\u1eb7t c\u1ee7a tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi, gi\u00fap cho sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng.","Cho xuy\u00ean qua 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi xu\u1ed1ng tr\u00e1i \u0111\u1ea5t."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>H\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, l\u00e0m cho b\u1ec1 m\u1eb7t c\u1ee7a tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi, gi\u00fap cho sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng.<\/b>","hint":"\u0110\u1ecdc l\u1ea1i \u0111o\u1ea1n:<br\/><b>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/b>","column":1}]}],"id_ques":642},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc k\u1ef9 b\u00e0i sau r\u1ed3i tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"<b>L\u1ed7 th\u1ee7ng t\u1ea7ng \u00d4 - D\u00f4n<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n). Ng\u01b0\u1eddi ta g\u1ecdi t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao n\u00e0y l\u00e0 t\u1ea7ng \u00f4 - d\u00f4n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/span><br\/><span class='basic_left textindent basic_size18'>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. Nguy\u00ean nh\u00e2n g\u00e2y ph\u00e1 ho\u1ea1i \u0111\u1ebfn t\u1ea7ng \u00f4 - d\u00f4n l\u00e0 ch\u1ea5t CFC do t\u1ee7 l\u1ea1nh, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, \u00f4 t\u00f4, m\u00e1y t\u00ednh, m\u00e1y c\u1ee9u h\u1ecfa th\u1ea3i ra.<\/span><br\/><span class='basic_left textindent basic_size18'>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Theo H\u1ecfi \u0111\u00e1p v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 m\u00f4i tr\u01b0\u1eddng, L\u00ea V\u0103n Khoa ch\u1ee7 bi\u00ean)<\/span><br\/><br\/>\u0110i\u1ec1u g\u00ec x\u1ea3y ra v\u1edbi t\u1ea7ng \u00f4 - d\u00f4n ?<\/b>","select":["B\u1ecb thu h\u1eb9p l\u1ea1i.","B\u1ecb m\u1edf r\u1ed9ng ra.","Xu\u1ea5t hi\u1ec7n ''l\u1ed7 th\u1ee7ng'' \u1edf Nam C\u1ef1c v\u00e0 B\u1eafc C\u1ef1c."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>Xu\u1ea5t hi\u1ec7n ''l\u1ed7 th\u1ee7ng'' \u1edf Nam C\u1ef1c v\u00e0 B\u1eafc C\u1ef1c.<\/b>","hint":"\u0110\u1ecdc l\u1ea1i \u0111o\u1ea1n:<br\/><b>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. <\/b>","column":1}]}],"id_ques":643},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc k\u1ef9 b\u00e0i sau r\u1ed3i tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"<b>L\u1ed7 th\u1ee7ng t\u1ea7ng \u00d4 - D\u00f4n<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n). Ng\u01b0\u1eddi ta g\u1ecdi t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao n\u00e0y l\u00e0 t\u1ea7ng \u00f4 - d\u00f4n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/span><br\/><span class='basic_left textindent basic_size18'>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. Nguy\u00ean nh\u00e2n g\u00e2y ph\u00e1 ho\u1ea1i \u0111\u1ebfn t\u1ea7ng \u00f4 - d\u00f4n l\u00e0 ch\u1ea5t CFC do t\u1ee7 l\u1ea1nh, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, \u00f4 t\u00f4, m\u00e1y t\u00ednh, m\u00e1y c\u1ee9u h\u1ecfa th\u1ea3i ra.<\/span><br\/><span class='basic_left textindent basic_size18'>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Theo H\u1ecfi \u0111\u00e1p v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 m\u00f4i tr\u01b0\u1eddng, L\u00ea V\u0103n Khoa ch\u1ee7 bi\u00ean)<\/span><br\/><br\/>T\u1ea7ng \u00f4 - d\u00f4n b\u1ecb th\u1ee7ng g\u00e2y ra t\u00e1c h\u1ea1i g\u00ec ?<\/b>","select":["Tr\u00e1i \u0111\u1ea5t h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia h\u1ed3ng ngo\u1ea1i l\u00e0m cho sinh v\u1eadt b\u1ecb n\u00f3ng v\u00e0 kh\u00f4 h\u00e9o.","Tr\u00e1i \u0111\u1ea5t kh\u00f4ng h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c tia t\u1eed ngo\u1ea1i l\u00e0m cho c\u00e2y c\u1ed1i kh\u00f4ng ph\u00e1t tri\u1ec3n \u0111\u01b0\u1ee3c.","Tr\u00e1i \u0111\u1ea5t h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i khi\u1ebfn cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u00eanh nguy hi\u1ec3m."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>Tr\u00e1i \u0111\u1ea5t h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i khi\u1ebfn cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u00eanh nguy hi\u1ec3m.<\/b>","hint":"\u0110\u1ecdc l\u1ea1i \u0111o\u1ea1n:<br\/><b>Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/b>","column":1}]}],"id_ques":644},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"\u0110\u1ecdc k\u1ef9 b\u00e0i sau r\u1ed3i tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"<b>L\u1ed7 th\u1ee7ng t\u1ea7ng \u00d4 - D\u00f4n<\/b><br\/><br\/><span class='basic_left textindent basic_size18'>Kh\u00ed \u00f4 - d\u00f4n g\u1ed3m 3 nguy\u00ean t\u1eed \u00f4 - xi. H\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00f4ng kh\u00ed r\u1ea5t th\u1ea5p, chi\u1ebfm m\u1ed9t ph\u1ea7n tri\u1ec7u, ch\u1ec9 \u1edf \u0111\u1ed9 cao 25 - 30km, n\u1ed3ng \u0111\u1ed9 \u00f4 - d\u00f4n m\u1edbi \u0111\u1eadm \u0111\u1eb7c h\u01a1n (chi\u1ebfm t\u1ec9 l\u1ec7 1\/100 000 trong kh\u00ed quy\u1ec3n). Ng\u01b0\u1eddi ta g\u1ecdi t\u1ea7ng kh\u00ed quy\u1ec3n \u1edf \u0111\u1ed9 cao n\u00e0y l\u00e0 t\u1ea7ng \u00f4 - d\u00f4n.<\/span><br\/><span class='basic_left textindent basic_size18'>T\u1ea7ng \u00f4 - d\u00f4n h\u1ea5p th\u1ee5 90% l\u01b0\u1ee3ng tia t\u1eed ngo\u1ea1i c\u1ee7a m\u1eb7t tr\u1eddi, gi\u00fap cho b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t ch\u1ec9 b\u1ecb m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf tia t\u1eed ngo\u1ea1i chi\u1ebfu t\u1edbi v\u00e0 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ef1 do sinh tr\u01b0\u1edfng. Khi t\u1ea7ng \u00f4 - d\u00f4n b\u1ecb ph\u00e1 ho\u1ea1i th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn tia t\u1eed ngo\u1ea1i s\u1ebd chi\u1ebfu th\u1eb3ng xu\u1ed1ng tr\u00e1i \u0111\u1ea5t khi\u00ean cho m\u00f9a m\u00e0ng b\u1ecb th\u1ea5t thu, gi\u1ea3m ch\u1ee9c n\u0103ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3, d\u1eabn \u0111\u1ebfn nhi\u1ec1u lo\u1ea1i b\u1ec7nh, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn b\u1ec7nh ung th\u01b0 da v\u00e0 b\u1ec7nh b\u1ea1ch t\u1ea1ng, ...<\/span><br\/><span class='basic_left textindent basic_size18'>N\u0103m 1985, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u1edf Nam C\u1ef1c c\u00f3 m\u1ed9t ''l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n'' r\u1ea5t l\u1edbn. \u1ede l\u1ed7 th\u1ee7ng n\u00e0y h\u00e0m l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u0103m 1987, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0110\u1ee9c ph\u00e1t hi\u1ec7n tr\u00ean v\u00f9ng tr\u1eddi B\u1eafc C\u1ef1c c\u0169ng c\u00f3 m\u1ed9t l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n t\u01b0\u01a1ng t\u1ef1. Nguy\u00ean nh\u00e2n g\u00e2y ph\u00e1 ho\u1ea1i \u0111\u1ebfn t\u1ea7ng \u00f4 - d\u00f4n l\u00e0 ch\u1ea5t CFC do t\u1ee7 l\u1ea1nh, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, \u00f4 t\u00f4, m\u00e1y t\u00ednh, m\u00e1y c\u1ee9u h\u1ecfa th\u1ea3i ra.<\/span><br\/><span class='basic_left textindent basic_size18'>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/span><br\/><span class='basic_right basic_gray basic_size18'>(Theo H\u1ecfi \u0111\u00e1p v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 m\u00f4i tr\u01b0\u1eddng, L\u00ea V\u0103n Khoa ch\u1ee7 bi\u00ean)<\/span><br\/><br\/>Ch\u00fang ta c\u1ea7n l\u00e0m g\u00ec \u0111\u1ec3 b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n ?<\/b>","select":["T\u0103ng l\u01b0\u1ee3ng kh\u00ed \u00f4 - d\u00f4n trong kh\u00ed quy\u1ec3n.","Gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n.","T\u0103ng l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>Gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n.<\/b>","hint":"\u0110\u1ecdc l\u1ea1i \u0111o\u1ea1n:<br\/><b>Hi\u1ec7n nay b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t b\u1ed9 ph\u1eadn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng qu\u1ed1c t\u1ebf. R\u1ea5t nhi\u1ec1u n\u01b0\u1edbc \u0111\u00e3 c\u1ea5m ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng kh\u00ed CFC, m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1p ra t\u1ee7 l\u1ea1nh xanh ''kh\u00f4ng d\u00f9ng kh\u00ed CFC''.<\/b>","column":1}]}],"id_ques":645},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"B\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c g\u1ea1ch ch\u00e2n trong c\u00e2u sau tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi n\u00e0o ?<br\/><b>''C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang ng\u0103n ch\u1eb7n c\u00e1c h\u00f3a ch\u1ea5t l\u00e0m h\u1ea1i t\u1edbi t\u1ea7ng \u00f4 - d\u00f4n <u>b\u1eb1ng c\u00e1c s\u1ea3n ph\u1ea9m m\u1edbi.''<\/u><\/b>","select":["\u0110\u1ec3 l\u00e0m g\u00ec ?","B\u1eb1ng g\u00ec ?","Nh\u01b0 th\u1ebf n\u00e0o ?"],"explain":"<b>C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang ng\u0103n ch\u1eb7n c\u00e1c h\u00f3a ch\u1ea5t l\u00e0m h\u1ea1i t\u1edbi t\u1ea7ng \u00f4 - d\u00f4n<\/b> tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi Ai ?<br\/><b>b\u1eb1ng c\u00e1c s\u1ea3n ph\u1ea9m m\u1edbi<\/b> tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi B\u1eb1ng g\u00ec ?<br\/>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<b>B\u1eb1ng g\u00ec ?<\/b>","hint":"B\u1ed9 ph\u1eadn g\u1ea1ch ch\u00e2n \u0111\u1ee9ng sau ch\u1eef b\u1eb1ng tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi B\u1eb1ng g\u00ec ?:<br\/><b>C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang ng\u0103n ch\u1eb7n c\u00e1c h\u00f3a ch\u1ea5t l\u00e0m h\u1ea1i t\u1edbi t\u1ea7ng \u00f4 - d\u00f4n b\u1eb1ng g\u00ec ?<\/b>","column":3}]}],"id_ques":646},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"D\u00f2ng n\u00e0o n\u00eau \u0111\u00fang b\u1ed9 ph\u1eadn tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi B\u1eb1ng g\u00ec ? c\u1ee7a c\u00e2u sau ?<br\/><b>T\u1ea7ng \u00f4 - d\u00f4n s\u1ebd \u0111\u01b0\u1ee3c ph\u1ee5c h\u1ed3i b\u1eb1ng gi\u00f3 kh\u00ed quy\u1ec3n v\u00e0 b\u1eb1ng vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n.<\/b>","select":["\u0111\u01b0\u1ee3c ph\u1ee5c h\u1ed3i b\u1eb1ng gi\u00f3 kh\u00ed quy\u1ec3n","b\u1eb1ng gi\u00f3 kh\u00ed quy\u1ec3n v\u00e0 b\u1eb7ng vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n","gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n"],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<br\/><b>b\u1eb1ng gi\u00f3 kh\u00ed quy\u1ec3n v\u00e0 b\u1eb7ng vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n<\/b>","hint":"","column":1}]}],"id_ques":647},{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"C\u00e2u n\u00e0o d\u00f9ng \u0111\u00fang d\u1ea5u hai ch\u1ea5m ?","select":["C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n ra hai l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n: m\u1ed9t \u1edf Nam C\u1ef1c v\u00e0 m\u1ed9t \u1edf B\u1eafc C\u1ef1c.","C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n ra: hai l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n m\u1ed9t \u1edf Nam C\u1ef1c v\u00e0 m\u1ed9t \u1edf B\u1eafc C\u1ef1c.","C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n ra hai l\u1ed7 th\u1ee7ng: t\u1ea7ng \u00f4 - d\u00f4n m\u1ed9t \u1edf Nam C\u1ef1c v\u00e0 m\u1ed9t \u1edf B\u1eafc C\u1ef1c."],"explain":"\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0:<br\/><b>C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n ra hai l\u1ed7 th\u1ee7ng t\u1ea7ng \u00f4 - d\u00f4n: m\u1ed9t \u1edf Nam C\u1ef1c v\u00e0 m\u1ed9t \u1edf B\u1eafc C\u1ef1c.<\/b>","hint":"T\u00e1c d\u1ee5ng c\u1ee7a d\u1ea5u hai ch\u1ea5m trong c\u00e2u l\u00e0: b\u00e1o hi\u1ec7u b\u1ed9 ph\u1eadn \u0111\u1ee9ng sau n\u00f3 l\u00e0 l\u1eddi n\u00f3i c\u1ee7a m\u1ed9t nh\u00e2n v\u1eadt ho\u1eb7c l\u00e0 l\u1eddi gi\u1ea3i th\u00edch cho b\u1ed9 ph\u1eadn \u0111\u1ee9ng tr\u01b0\u1edbc n\u00f3.","column":1}]}],"id_ques":648},{"time":14,"part":[{"title":"Ch\u1ecdn d\u1ea5u th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"H\u01b0\u1edbng d\u1eabn: B\u1ea1n h\u00e3y click v\u00e0o t\u1eeb\/c\u1ee5m t\u1eeb \u0111\u1ec3 thay v\u00e0o \u00f4 tr\u1ed1ng th\u00edch h\u1ee3p v\u00e0 t\u1ea1o th\u00e0nh \u0111\u00e1p \u00e1n \u0111\u00fang.","correct":[[":"],[","],["."]],"temp":"drop_blank","list":[{"point":10,"word":[".",":",","],"ques":"<span class='basic_left textindent basic18'>Ch\u00fang ta c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n b\u1eb1ng nh\u1eefng c\u00e1ch sau_dr_blank_ gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC trong kh\u00f4ng kh\u00ed_dr_blank_ d\u00f9ng c\u00e1c s\u1ea3n ph\u1ea9m m\u1edbi_dr_blank_<\/span>","explain":"C\u00e1c d\u1ea5u th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng l\u00e0:<br\/><b><span class='basic_left textindent basic18'>Ch\u00fang ta c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 t\u1ea7ng \u00f4 - d\u00f4n b\u1eb1ng nh\u1eefng c\u00e1ch sau<span class='basic_green'>: <\/span> gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed CFC trong kh\u00f4ng kh\u00ed<span class='basic_green'>, <\/span> d\u00f9ng c\u00e1c s\u1ea3n ph\u1ea9m m\u1edbi<span class='basic_green'>. <\/span><\/span><\/b>"}]}],"id_ques":649},{"time":14,"part":[{"title":"Ch\u1ecdn \u00e2m \u0111\u1ea7u th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"H\u01b0\u1edbng d\u1eabn: B\u1ea1n h\u00e3y click v\u00e0o t\u1eeb\/c\u1ee5m t\u1eeb \u0111\u1ec3 thay v\u00e0o \u00f4 tr\u1ed1ng th\u00edch h\u1ee3p v\u00e0 t\u1ea1o th\u00e0nh \u0111\u00e1p \u00e1n \u0111\u00fang.","correct":[["Tr"],["tr"],["ch"],["Ch"]],"temp":"drop_blank","list":[{"point":10,"word":["Ch","Tr","tr","ch"],"ques":"<div class='basic_table_left basic18'>Ng\u00e0y h\u00f4m qua \u1edf l\u1ea1i<br\/>_dr_blank_ong h\u1ea1t l\u00faa m\u1eb9 _dr_blank_\u1ed3ng<br\/>C\u00e1nh \u0111\u1ed3ng _dr_blank_\u1edd g\u1eb7t h\u00e1i<br\/>_dr_blank_\u00edn v\u00e0ng m\u00e0u \u01b0\u1edbc mong.<\/div>","explain":"Ch\u1eef th\u00edch h\u1ee3p thay v\u00e0o \u00f4 tr\u1ed1ng l\u00e0:<br\/><b><div class='basic_table_left basic18'>Ng\u00e0y h\u00f4m qua \u1edf l\u1ea1i<br\/><u>Tr<\/u>ong h\u1ea1t l\u00faa m\u1eb9 <u>tr<\/u>\u1ed3ng<br\/>C\u00e1nh \u0111\u1ed3ng <u>ch<\/u>\u1edd g\u1eb7t h\u00e1i<br\/><u>Ch<\/u>\u00edn v\u00e0ng m\u00e0u \u01b0\u1edbc mong.<\/div><\/b>"}]}],"id_ques":650}],"lesson":{"save":0,"level":3}}