Luy\u1ec7n t\u1eadp<\/h2>\n

C\u00e2u 1 (trang 76 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

a. V\u0103n b\u1ea3n\u00a0Kh\u00e1i qu\u00e1t v\u0103n h\u1ecdc Vi\u1ec7t nam t\u1eeb C\u00e1ch m\u1ea1ng th\u00e1ng T\u00e1m n\u0103m 1945 \u0111\u1ebfn h\u1ebft th\u1ebf k\u1ec9 XX<\/i>\u00a0tr\u00ecnh b\u00e0y nh\u1eefng n\u1ed9i dung khoa h\u1ecdc:<\/p>\n

– Nh\u1eefng ti\u1ec1n \u0111\u1ec1 ph\u00e1t tri\u1ec3n c\u1ee7a v\u0103n h\u1ecdc.<\/p>\n

– C\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n v\u00e0 th\u00e0nh t\u1ef1u qua m\u1ed7i giai \u0111o\u1ea1n.<\/p>\n

– Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m chung v\u1ec1 n\u1ed9i dung v\u00e0 ngh\u1ec7 thu\u1eadt.<\/p>\n

b, V\u0103n b\u1ea3n thu\u1ed9c ng\u00e0nh khoa h\u1ecdc nghi\u00ean c\u1ee9u v\u0103n h\u1ecdc thu\u1ed9c lo\u1ea1i khoa h\u1ecdc gi\u00e1o khoa.<\/p>\n

c. \u0110\u1eb7c \u0111i\u1ec3m d\u1ea1ng vi\u1ebft c\u1ee7a ng\u00f4n ng\u1eef trong v\u0103n b\u1ea3n d\u1ec5 nh\u1eadn th\u1ea5y l\u00e0 \u1edf h\u1ec7 th\u1ed1ng c\u00e1c \u0111\u1ec1 m\u1ee5c h\u1ee3p l\u00ed, d\u1ec5 hi\u1ec3u, s\u1eed d\u1ee5ng nhi\u1ec1u thu\u1eadt ng\u1eef thu\u1ed9c l\u0129nh v\u1ef1c v\u0103n h\u1ecdc.<\/p>\n

C\u00e2u 2 (trang 76 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

– \u0110i\u1ec3m:<\/p>\n

+ Ng\u00f4n ng\u1eef th\u00f4ng th\u01b0\u1eddng: h\u00ecnh nh\u1ecf nh\u1ea5t, th\u01b0\u1eddng h\u00ecnh tr\u00f2n, m\u00e0 m\u1eaft c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y.<\/p>\n

+ Ng\u00f4n ng\u1eef khoa h\u1ecdc: \u0111\u01b0\u1ee3c hi\u1ec3u nh\u01b0 ph\u1ea7n kh\u00f4ng gian c\u00f3 k\u00edch th\u01b0\u1edbc m\u1ecdi chi\u1ec1u b\u1eb1ng kh\u00f4ng.<\/p>\n

– \u0110o\u1ea1n th\u1eb3ng:<\/p>\n

+ Ng\u00f4n ng\u1eef th\u00f4ng th\u01b0\u1eddng: \u0110o\u1ea1n kh\u00f4ng cong queo, g\u00e3y kh\u00fac, kh\u00f4ng l\u1ec7ch v\u1ec1 m\u1ed9t b\u00ean n\u00e0o c\u1ea3.<\/p>\n

+ Ng\u00f4n ng\u1eef khoa h\u1ecdc: \u0110o\u1ea1n ng\u1eafn nh\u1ea5t n\u1ed1i hai \u0111i\u1ec3m v\u1edbi nhau.<\/p>\n

– M\u1eb7t ph\u1eb3ng<\/p>\n

+ Ng\u00f4n ng\u1eef th\u00f4ng th\u01b0\u1eddng: b\u1ec1 m\u1eb7t c\u1ee7a m\u1ed9t v\u1eadt b\u1eb1ng ph\u1eb3ng, kh\u00f4ng l\u1ed3i, l\u00f5m, g\u1ed3 gh\u1ec1.<\/p>\n

+ Ng\u00f4n ng\u1eef khoa h\u1ecdc: l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m c\u01a1 \u1ea3n trong to\u00e1n h\u1ecdc, l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m trong kh\u00f4ng gian ba chi\u1ec1u.<\/p>\n

C\u00e2u 3 (trang 76 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

* \u0110o\u1ea1n v\u0103n d\u00f9ng nhi\u1ec1u thu\u1eadt ng\u1eef khoa h\u1ecdc:\u00a0kh\u1ea3o c\u1ed5, ng\u01b0\u1eddi v\u01b0\u1ee3n, h\u1ea1ch \u0111\u00e1, m\u1ea3nh t\u01b0\u1edbc, r\u00ecu tay, di ch\u1ec9, c\u00f4ng c\u1ee5 \u0111\u00e1,..<\/i><\/p>\n

* T\u00ednh l\u00ed tr\u00ed, logic:<\/p>\n

– C\u00e2u \u0111\u1ea7u ti\u00ean n\u00eau lu\u1eadn \u0111i\u1ec3m kh\u00e1i qu\u00e1t:\u00a0\u201cNh\u1eefng nh\u00e0 ph\u00e1y hi\u1ec7n c\u1ee7a c\u00e1c nh\u00e0 kh\u1ea3o c\u1ed5 n\u01b0\u1edbc ta ch\u1ee9ng t\u1ecf Vi\u1ec7t Nam x\u01b0a kia \u0111\u00e3 t\u1eebng l\u00e0 n\u01a1i sinh s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi v\u01b0\u1ee3n\u201d.<\/i><\/p>\n

– C\u00e1c c\u00e2u ti\u1ebfp theo n\u00eau l\u00ean lu\u1eadn c\u1ee9 (lu\u1eadn c\u1ee9 l\u00e0 c\u00e1c c\u1ee9 li\u1ec7u th\u1ef1c t\u1ebf).<\/p>\n

– \u0110o\u1ea1n v\u0103n c\u00f3 l\u1eadp lu\u1eadn v\u00e0 k\u1ebft c\u1ea5u di\u1ec5n d\u1ecbch.<\/p>\n

C\u00e2u 4 (trang 76 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

V\u00ed d\u1ee5<\/p>\n

N\u01b0\u1edbc l\u00e0 t\u00e0i nguy\u00ean v\u00f4 c\u00f9ng qu\u00fd gi\u00e1 v\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi m\u1ed7i con ng\u01b0\u1eddi. Tr\u00ean th\u1ef1c t\u1ebf, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng, khi ngu\u1ed3n n\u01b0\u1edbc ng\u00e0y c\u00e0ng b\u1ecb \u00f4 nhi\u1ec5m tr\u1ea7m tr\u1ecdng \u0111\u00e3 g\u00e2y ra nh\u1eefng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi. Khi ngu\u1ed3n n\u01b0\u1edbc \u00f4 nhi\u1ec5m s\u1ebd l\u00e0m t\u0103ng nguy c\u01a1 ung th\u01b0, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a thai s\u1ea3n,\u2026 Theo th\u1ed1ng k\u00ea c\u1ee7a B\u1ed9 y t\u1ebf v\u00e0 B\u1ed9 t\u00e0i nguy\u00ean m\u00f4i tr\u01b0\u1eddng, trung b\u00ecnh m\u1ed7i n\u0103m \u1edf Vi\u00eat Nam c\u00f3 kho\u1ea3ng 9000 ng\u01b0\u1eddi t\u1eed vong v\u00ec ngu\u1ed3n n\u01b0\u1edbc v\u00e0 \u0111i\u1ec1u ki\u1ec7n sinh ho\u1ea1t k\u00e9m. B\u00ean c\u1ea1nh \u0111\u00f3 c\u00f3 g\u1ea7n 200.000 tr\u01b0\u1eddng h\u1ee3p m\u1eafc b\u1ec7nh ung thu m\u1edbi ph\u00e1t hi\u1ec7n m\u00e0 s\u1eed d\u1ee5ng ngu\u1ed3n n\u01b0\u1edbc \u00f4 nhi\u1ec5m ch\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ch\u00ednh.<\/p>\n

Do v\u1eady, vi\u1ec7c b\u1ea3o v\u1ec7 ngu\u1ed3n n\u01b0\u1edbc l\u00e0 h\u1ebft quan tr\u1ecdng v\u00e0 c\u1ea7n thi\u1ebft kh\u00f4ng ch\u1ec9 m\u1ed7i qu\u1ed1c gia m\u00e0 \u0111\u00f3 c\u00f2n l\u00e0 nhi\u1ec7m v\u1ee5 chung c\u1ee7a to\u00e0n nh\u00e2n lo\u1ea1i. \u0110\u1ec3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 c\u00e1c v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc c\u1ea7n ph\u1ea3i c\u00f3 chi\u1ebfn l\u01b0\u1ee3c c\u1ee5 th\u1ec3. B\u00ean c\u1ea1nh \u0111\u00f3, m\u1ed7i ng\u01b0\u1eddi c\u1ea7n c\u00f3 th\u1ee9c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc xung quanh ch\u00fang ta \u0111\u1ec3 h\u01b0\u1edbng t\u1edbi m\u1ed9t m\u00f4i tr\u01b0\u1eddng th\u00e2n thi\u1ec7n v\u00e0 t\u1ed1t \u0111\u1eb9p h\u01a1n \u0111\u1ed1i v\u1edbi m\u1ed7i con ng\u01b0\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"

Luy\u1ec7n t\u1eadp C\u00e2u 1 (trang 76 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1): a. V\u0103n b\u1ea3n\u00a0Kh\u00e1i qu\u00e1t v\u0103n h\u1ecdc Vi\u1ec7t nam t\u1eeb C\u00e1ch m\u1ea1ng th\u00e1ng T\u00e1m n\u0103m 1945 \u0111\u1ebfn h\u1ebft th\u1ebf k\u1ec9 XX\u00a0tr\u00ecnh b\u00e0y nh\u1eefng n\u1ed9i dung khoa h\u1ecdc: – Nh\u1eefng ti\u1ec1n \u0111\u1ec1 ph\u00e1t tri\u1ec3n c\u1ee7a v\u0103n h\u1ecdc. – C\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n v\u00e0 th\u00e0nh […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1300],"tags":[1378,1387,1380],"yoast_head":"\n