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{"id":40240,"date":"2019-06-05T09:36:13","date_gmt":"2019-06-05T02:36:13","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=40240"},"modified":"2019-06-05T09:36:15","modified_gmt":"2019-06-05T02:36:15","slug":"mon-hoa-ho%cc%a3c-thi-thpt-quoc-gia-nen-ho%cc%a3c-kien-thuc-trong-tam-nao-trong-nhung-ngay-cuoi","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/mon-hoa-ho%cc%a3c-thi-thpt-quoc-gia-nen-ho%cc%a3c-kien-thuc-trong-tam-nao-trong-nhung-ngay-cuoi\/","title":{"rendered":"M\u00f4n Ho\u0301a ho\u0323c thi THPT qu\u1ed1c gia: N\u00ean ho\u0323c ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m n\u00e0o trong nh\u1eefng ng\u00e0y cu\u1ed1i?"},"content":{"rendered":"\n

\u0110\u1ec3 gi\u00fap c\u00e1c th\u00ed sinh \u00f4n thi hi\u1ec7u qu\u1ea3 m\u00f4n H\u00f3a h\u1ecdc, th\u1ea7y gi\u00e1o D\u01b0\u01a1ng Ti\u1ebfn T\u00e0i – gi\u00e1o vi\u00ean b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc s\u1ebd chia s\u1ebb nh\u1eefng kinh nghi\u1ec7m v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng l\u1ed9 tr\u00ecnh h\u1ecdc t\u1ed1i \u01b0u gi\u00fap c\u00e1c s\u0129 t\u1eed t\u1ef1 tin chinh ph\u1ee5c k\u00ec thi THPT qu\u1ed1c gia 2019 s\u1eafp t\u1edbi.<\/strong><\/p>\n\n\n\n

L\u01b0u \u00fd \u00f4n luy\u1ec7n trong 20 ng\u00e0y cu\u1ed1i<\/h2>\n\n\n\n

Tr\u01b0\u1edbc\u00a0k\u00ec thi THPT qu\u1ed1c gia<\/strong>, \u0111i\u1ec1u \u0111\u1ea7u ti\u00ean, c\u00e1c em ph\u1ea3i c\u00f3 tinh th\u1ea7n th\u1eadt kh\u1ecfe, \u0111\u1eebng t\u1ea1o qu\u00e1 nhi\u1ec1u \u00e1p l\u1ef1c cho b\u1ea3n th\u00e2n. C\u00f3 nh\u01b0 th\u1ebf vi\u1ec7c \u00f4n thi v\u1edbi nh\u1eefng m\u1ee5c ti\u00eau v\u1eeba s\u1ee9c v\u00e0 chi\u1ebfn l\u01b0\u1ee3c c\u1ee5 th\u1ec3 m\u1edbi th\u00e0nh c\u00f4ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

L\u00ean k\u1ebf ho\u1ea1ch c\u1ee5 th\u1ec3 cho t\u1eebng gi\u1edd, t\u1eebng m\u00f4n h\u1ecdc: Ng\u00e0y h\u00f4m nay em ph\u1ea3i \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng m\u1ee5c ti\u00eau g\u00ec l\u00e0 em ph\u1ea3i ho\u00e0n th\u00e0nh.<\/p>\n\n\n\n

Kh\u00f4ng n\u00ean luy\u1ec7n qu\u00e1 nhi\u1ec1u \u0111\u1ec1 v\u00e0 ch\u1ea1y theo nh\u1eefng d\u1ea1ng b\u00e0i m\u1edbi, \u0111\u1ed9c, l\u1ea1 l\u00fac n\u00e0y n\u1eefa. Luy\u1ec7n \u00edt \u0111\u1ec1 nh\u01b0ng ch\u1ea5t, luy\u1ec7n nhi\u1ec1u l\u1ea7n \u0111\u1ec3 b\u1ed3i \u0111\u1eafp k\u0129 n\u0103ng.<\/p>\n\n\n\n

C\u1ea7n ph\u00e2n t\u00edch v\u00e0 l\u00e0m l\u1ea1i th\u1eadt k\u0129 t\u1eeb \u0111\u1ec1 thi tham kh\u1ea3o 2019 c\u1ee7a B\u1ed9 GD&\u0110T.<\/p>\n\n\n\n

C\u01a1 c\u1ea5u l\u00ed thuy\u1ebft v\u00e0 b\u00e0i t\u1eadp trong \u0111\u1ec1\u00a0thi THPT qu\u1ed1c gia\u00a0ch\u00eanh l\u1ec7ch kh\u00f4ng qu\u00e1 nhi\u1ec1u (kho\u1ea3ng t\u1eeb 21-23 c\u00e2u l\u00ed thuy\u1ebft). V\u1eady n\u00ean vi\u1ec7c n\u1eafm ch\u1eafc l\u00ed thuy\u1ebft, b\u1ea3n ch\u1ea5t h\u00f3a h\u1ecdc l\u00e0 r\u1ea5t quan tr\u1ecdng khi \u00f4n thi.<\/p>\n\n\n\n

L\u1ed9 tr\u00ecnh h\u1ecdc t\u1ed1i \u01b0u giai \u0111o\u1ea1n n\u01b0\u1edbc r\u00fat<\/h2>\n\n\n\n

Theo \u0111\u1ecbnh h\u01b0\u1edbng thi c\u1ee7a B\u1ed9 GD&\u0110T th\u00ec\u00a0\u0111\u1ec1 thi THPT\u00a0qu\u1ed1c gia\u00a0n\u0103m nay s\u1ebd t\u1eadp trung ch\u1ee7 y\u1ebfu v\u00e0o ch\u01b0\u01a1ng tr\u00ecnh H\u00f3a h\u1ecdc l\u1edbp 12 (kho\u1ea3ng 90%), kho\u1ea3ng 10% c\u00f2n l\u1ea1i s\u1ebd r\u01a1i v\u00e0o ch\u01b0\u01a1ng tr\u00ecnh H\u00f3a h\u1ecdc l\u1edbp 11 v\u00e0 10.<\/p>\n\n\n\n

Th\u1eddi gian k\u00ec thi ch\u00ednh th\u1ee9c di\u1ec5n ra \u0111ang c\u1eadn k\u1ec1, th\u00ed sinh h\u00e3y l\u1eadp l\u1ed9 tr\u00ecnh h\u1ecdc th\u1eadt h\u1ee3p l\u00ed v\u00e0 c\u00e2n \u0111\u1ed1i gi\u1eefa c\u00e1c m\u00f4n sao cho ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c ti\u00eau v\u00e0 n\u0103ng l\u1ef1c c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

– H\u1ec7 th\u1ed1ng h\u00f3a ki\u1ebfn th\u1ee9c b\u1eb1ng s\u01a1 \u0111\u1ed3 t\u01b0 duy<\/h3>\n\n\n\n

+ \u0110\u1ed1i v\u1edbi V\u00f4 c\u01a1 t\u1eadp trung ch\u1ee7 y\u1ebfu v\u00e0o m\u1ed9t s\u1ed1 ch\u1ee7 \u0111\u1ec1 nh\u01b0: \u0110\u1ea1i c\u01b0\u01a1ng kim lo\u1ea1i (v\u1ecb tr\u00ed, t\u00ednh ch\u1ea5t v\u1eadt l\u00ed, d\u00e3y \u0111i\u1ec7n h\u00f3a, \u0111i\u1ec1u ch\u1ebf v\u00e0 \u0103n m\u00f2n kim lo\u1ea1i); kim lo\u1ea1i nh\u00f3m IA, IIA v\u00e0 Nh\u00f4m (t\u00ednh ch\u1ea5t c\u1ee7a \u0111\u01a1n ch\u1ea5t v\u00e0 h\u1ee3p ch\u1ea5t kim lo\u1ea1i nh\u00f3m IA, IIA v\u00e0 Nh\u00f4m, l\u01b0u \u00fd \u0111\u1ebfn c\u00e1c c\u00e2u h\u1ecfi l\u00ed thuy\u1ebft v\u1ec1 n\u01b0\u1edbc c\u1ee9ng, \u1ee9ng d\u1ee5ng c\u1ee7a \u0111\u01a1n ch\u1ea5t v\u00e0 h\u1ee3p ch\u1ea5t c\u1ee7a ch\u00fang); s\u1eaft (l\u01b0u \u00fd v\u1ec1 c\u00e1c c\u1eb7p oxi h\u00f3a \u2013 kh\u1eed c\u1ee7a s\u1eaft trong d\u00e3y \u0111i\u1ec7n h\u00f3a); b\u00e0i to\u00e1n HNO3 (l\u01b0u \u00fd dung d\u1ecbch ch\u1ee9a H+ v\u00e0 NO3- c\u00f3 t\u00ednh oxi h\u00f3a m\u1ea1nh t\u01b0\u01a1ng t\u1ef1 nh\u01b0 HNO3); l\u00ed thuy\u1ebft c\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra trong dung d\u1ecbch; ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh\u2026<\/p>\n\n\n\n

+ \u0110\u1ed1i v\u1edbi H\u1eefu c\u01a1 t\u1eadp trung ch\u1ee7 y\u1ebfu v\u00e0o m\u1ed9t s\u1ed1 ch\u1ee7 \u0111\u1ec1 nh\u01b0: Kh\u00e1i ni\u1ec7m – danh ph\u00e1p – t\u00ednh ch\u1ea5t v\u1eadt l\u00ed v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a este, ch\u1ea5t b\u00e9o, cacbohi\u0111rat, h\u1ee3p ch\u1ea5t ch\u1ee9a nit\u01a1 v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 polime; t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a m\u1ed7i lo\u1ea1i h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1; b\u1ea3n ch\u1ea5t c\u00e1c ph\u1ea3n \u1ee9ng c\u1ee7a c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 v\u1edbi nh\u1eefng ch\u1ea5t th\u01b0\u1eddng g\u1eb7p nh\u01b0 dung d\u1ecbch Br2, dung d\u1ecbch AgNO3\/NH3, dung d\u1ecbch NaOH, dung d\u1ecbch HCl, Cu(OH)2\u2026 (r\u1ea5t l\u01b0u \u00fd nh\u1eefng c\u00e2u h\u1ecfi \u0111\u1ebfm \u1edf n\u1ed9i dung l\u00ed thuy\u1ebft).<\/p>\n\n\n\n

Trong h\u00f3a h\u1eefu c\u01a1 c\u00f3 2 d\u1ea1ng b\u00e0i t\u1eadp ng\u01b0\u1eddi ra \u0111\u1ec1 hay khai th\u00e1c \u0111\u00f3 l\u00e0 ph\u1ea3n \u1ee9ng th\u1ee7y ph\u00e2n v\u00e0 ph\u1ea3n \u1ee9ng oxi h\u00f3a (oxi h\u00f3a kh\u00f4ng ho\u00e0n to\u00e0n v\u00e0 oxi h\u00f3a ho\u00e0n to\u00e0n hay c\u00f2n g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng \u0111\u1ed1t ch\u00e1y).<\/p>\n\n\n\n

+ “Thu\u1ed1c ch\u1eefa” ri\u00eang \u0111\u1ed1i v\u1edbi c\u00e1c em h\u1ecdc sinh ch\u01b0a th\u1ec3 l\u1ea5y l\u1ea1i g\u1ed1c \u0111\u00f3 l\u00e0 c\u1ed1 g\u1eafng ghi nh\u1edb nh\u1eefng b\u00e0i luy\u1ec7n t\u1eadp (\u1edf cu\u1ed1i m\u1ed7i ch\u01b0\u01a1ng h\u1ecdc) trong SGK 12. Sau \u0111\u00f3, th\u1ef1c h\u00e0nh v\u1eadn d\u1ee5ng c\u00e1c ki\u1ebfn th\u1ee9c \u0111\u00f3 lu\u00f4n b\u1eb1ng c\u00e1ch tr\u1ea3 l\u1eddi c\u00e1c c\u00e2u h\u1ecfi v\u00e0 gi\u1ea3i b\u00e0i t\u1eadp t\u00ednh to\u00e1n \u0111\u01a1n gi\u1ea3n trong c\u00e1c \u0111\u1ec1 thi t\u1ed1t nghi\u1ec7p c\u1ee7a B\u1ed9 GD&\u0110T t\u1eeb n\u0103m 2007 v\u00e0 c\u00e1c\u00a0\u0111\u1ec1 thi THPT qu\u1ed1c gia\u00a0tr\u01b0\u1edbc \u0111\u00f3 cho \u0111\u1ebfn \u0111\u1ec1 thi tham kh\u1ea3o 2019. \u0110\u00e2y l\u00e0 nh\u1eefng n\u1ed9i dung c\u1ee9u c\u00e1nh mang l\u1ea1i kh\u00f4ng \u00edt \u0111i\u1ec3m gi\u00fap c\u00e1c b\u1ea1n h\u1ecdc l\u1ef1c m\u00f4n H\u00f3a h\u1ecdc \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i ch\u01b0a c\u1ea3i thi\u1ec7n nhi\u1ec1u.<\/p>\n\n\n\n

N\u1ebfu th\u1ea5y vi\u1ec7c ghi nh\u1edb t\u1ea5t c\u1ea3 ki\u1ebfn th\u1ee9c trong SGK l\u00e0 qu\u00e1 t\u1ea3i th\u00ec h\u00e3y t\u1eadp trung v\u00e0o kim lo\u1ea1i, este, cacbohi\u0111rat v\u00e0 polime. Th\u01b0\u1eddng s\u1ebd c\u00f3 nhi\u1ec1u c\u00e2u h\u1ecfi d\u1ec5 r\u01a1i v\u00e0o c\u00e1c ch\u1ee7 \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n

+ \u0110\u1ed1i v\u1edbi c\u00e1c em h\u1ecdc l\u1ef1c kh\u00e1, gi\u1ecfi mu\u1ed1n \u0111\u1ea1t \u0111i\u1ec3m cao m\u00f4n H\u00f3a h\u1ecdc<\/em> th\u00ec trong qu\u00e1 tr\u00ecnh luy\u1ec7n \u0111\u1ec1 c\u1ea7n tr\u00e1nh g\u1eb7p l\u1ea1i c\u00e1c b\u1eaby v\u00e0 l\u1ed7i sai tr\u01b0\u1edbc \u0111\u00f3. R\u00e8n luy\u1ec7n th\u1eadt nhu\u1ea7n nhuy\u1ec5n c\u00e1c k\u0129 n\u0103ng gi\u1ea3i to\u00e1n.<\/p>\n\n\n\n

– V\u1eadn d\u1ee5ng linh ho\u1ea1t c\u00e1c \u0111\u1ecbnh lu\u1eadt b\u1ea3o to\u00e0n<\/h3>\n\n\n\n

+ C\u00f3 4 \u0111\u1ecbnh lu\u1eadt c\u01a1 b\u1ea3n trong H\u00f3a h\u1ecdc \u0111\u00f3 l\u00e0 b\u1ea3o to\u00e0n mol nguy\u00ean t\u1ed1 (BTNT), b\u1ea3o to\u00e0n kh\u1ed1i l\u01b0\u1ee3ng (BTKL), b\u1ea3o to\u00e0n mol electron (BTe), b\u1ea3o to\u00e0n \u0111i\u1ec7n t\u00edch (BT\u0110T) c\u00e1c em n\u00ean hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t v\u00e0 bi\u1ebft c\u00e1ch v\u1eadn d\u1ee5ng ch\u00fang khi gi\u1ea3i b\u00e0i t\u1eadp.<\/p>\n\n\n\n

+ Ri\u00eang \u0111\u1ed1i v\u1edbi c\u00e1c em l\u1ef1c h\u1ecdc trung b\u00ecnh th\u00ec h\u00e3y t\u1eadp trung v\u00e0o m\u1ed9t s\u1ed1 d\u1ea1ng to\u00e1n c\u01a1 b\u1ea3n th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong \u0111\u1ec1 thi c\u1ee5 th\u1ec3 nh\u01b0: Kim lo\u1ea1i t\u00e1c d\u1ee5ng v\u1edbi axit (HCl, H2SO4 lo\u00e3ng); th\u1ee7y ph\u00e2n este \u0111\u01a1n ch\u1ee9c; \u0111\u1ed1t ch\u00e1y este no \u0111\u01a1n ch\u1ee9c m\u1ea1ch h\u1edf; amin \u0111\u01a1n ch\u1ee9c t\u00e1c d\u1ee5ng HCl\u2026<\/p>\n\n\n\n

–  Luy\u1ec7n \u0111\u1ec1<\/h3>\n\n\n\n

+ T\u1ea5t c\u1ea3 c\u00e1c em \u0111\u1ec1u ph\u1ea3i l\u00e0m.<\/p>\n\n\n\n

+ Th\u1ea7y khuy\u00ean c\u00e1c em \u1edf giai \u0111o\u1ea1n n\u01b0\u1edbc r\u00fat ch\u1ec9 n\u00ean luy\u1ec7n th\u00eam kho\u1ea3ng 3 \u0111\u1ec1 n\u1eefa th\u00f4i nh\u01b0ng trong 3 \u0111\u1ec1 n\u00e0y h\u00e3y m\u1ed5 x\u1ebb v\u00e0 ph\u00e2n t\u00edch th\u1eadt k\u0129, c\u1ea7n bi\u1ebft g\u1eafn k\u1ebft, h\u1ec7 th\u1ed1ng h\u00f3a c\u00e1c ki\u1ebfn th\u1ee9c th\u00e0nh m\u1ed9t chu\u1ed7i xuy\u00ean su\u1ed1t. C\u1ea7n l\u00e0m l\u1ea1i c\u00e1c \u0111\u1ec1 n\u00e0y nhi\u1ec1u l\u1ea7n \u0111\u1ec3 t\u1ea1o ph\u1ea3n x\u1ea1 v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n

+ Ghi l\u1ea1i t\u1ea5t c\u1ea3 nh\u1eefng b\u1eaby v\u00e0 l\u1ed7i sai nh\u1eb1m tr\u00e1nh g\u1eb7p ph\u1ea3i khi \u0111i thi.<\/p>\n\n\n\n

+ Trong \u0111\u1ec1 thi s\u1eafp t\u1edbi c\u1ee7a B\u1ed9 GD&\u0110T, khi nh\u1eadn \u0111\u1ec1 c\u00e1c em h\u00e3y bao qu\u00e1t \u0111\u1ecdc l\u01b0\u1edbt 40 c\u00e2u h\u1ecfi sau \u0111\u00f3 ph\u00e2n chia th\u1eddi gian h\u1ee3p l\u00ed l\u00e0m c\u00e2u d\u1ec5 tr\u01b0\u1edbc, kh\u00f3 sau, c\u1ea7n c\u1ea3nh gi\u00e1c nh\u1eefng c\u00e2u l\u00ed thuy\u1ebft \u0111\u1ec3 tr\u00e1nh m\u1ea5t \u0111i\u1ec3m oan. Khoanh \u0111\u01b0\u1ee3c c\u00e2u n\u00e0o ph\u1ea3i ch\u1eafc ch\u1eafn c\u00e2u \u0111\u00f3, tr\u01b0\u1eddng h\u1ee3p x\u1ea5u nh\u1ea5t n\u1ebfu kh\u00f4ng k\u1ecbp th\u1eddi gian th\u00ec khoanh random.<\/p>\n\n\n\n

Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng chia s\u1ebb t\u1eeb Th\u1ea7y D\u01b0\u01a1ng Ti\u1ebfn T\u00e0i trong k\u00ec thi THPT qu\u1ed1c gia 2019<\/strong>. Ch\u00fac c\u00e1c em thi \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t trong k\u00ec thi s\u1eafp t\u1edbi!<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0110\u1ec3 gi\u00fap c\u00e1c th\u00ed sinh \u00f4n thi hi\u1ec7u qu\u1ea3 m\u00f4n H\u00f3a h\u1ecdc, th\u1ea7y gi\u00e1o D\u01b0\u01a1ng Ti\u1ebfn T\u00e0i – gi\u00e1o vi\u00ean b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc s\u1ebd chia s\u1ebb nh\u1eefng kinh nghi\u1ec7m v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng l\u1ed9 tr\u00ecnh h\u1ecdc t\u1ed1i \u01b0u gi\u00fap c\u00e1c s\u0129 t\u1eed t\u1ef1 tin chinh ph\u1ee5c k\u00ec thi THPT qu\u1ed1c gia 2019 s\u1eafp t\u1edbi. L\u01b0u […]<\/p>\n","protected":false},"author":3,"featured_media":40241,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[159],"tags":[],"yoast_head":"\nM\u00f4n Ho\u0301a ho\u0323c thi THPT qu\u1ed1c gia: N\u00ean ho\u0323c ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m n\u00e0o trong nh\u1eefng ng\u00e0y cu\u1ed1i?<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/mon-hoa-ho\u0323c-thi-thpt-quoc-gia-nen-ho\u0323c-kien-thuc-trong-tam-nao-trong-nhung-ngay-cuoi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M\u00f4n Ho\u0301a ho\u0323c thi THPT qu\u1ed1c gia: N\u00ean ho\u0323c ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m n\u00e0o trong nh\u1eefng ng\u00e0y cu\u1ed1i?\" \/>\n<meta property=\"og:description\" content=\"\u0110\u1ec3 gi\u00fap c\u00e1c th\u00ed sinh \u00f4n thi hi\u1ec7u qu\u1ea3 m\u00f4n H\u00f3a h\u1ecdc, th\u1ea7y gi\u00e1o D\u01b0\u01a1ng Ti\u1ebfn T\u00e0i – gi\u00e1o vi\u00ean b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc s\u1ebd chia s\u1ebb nh\u1eefng kinh nghi\u1ec7m v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng l\u1ed9 tr\u00ecnh h\u1ecdc t\u1ed1i \u01b0u gi\u00fap c\u00e1c s\u0129 t\u1eed t\u1ef1 tin chinh ph\u1ee5c k\u00ec thi THPT qu\u1ed1c gia 2019 s\u1eafp t\u1edbi. 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