Soi c\u1ea7u l\u00f4 \u0111\u1ec1 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u1ef1 \u0111o\u00e1n l\u00f4 \u0111\u1ec1 th\u00f4ng qua k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft c\u1ee7a nh\u1eefng ng\u00e0y tr\u01b0\u1edbc \u0111\u00f3. H\u00ecnh th\u1ee9c n\u00e0y \u0111\u00e3 tr\u1edf n\u00ean qu\u00e1 quen thu\u1ed9c \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi y\u00eau th\u00edch c\u00e1 c\u01b0\u1ee3c. Tuy nhi\u00ean, soi c\u1ea7u l\u00f4 \u0111\u1ec1 nh\u01b0 th\u1ebf n\u00e0o cho chu\u1ea9n v\u00e0 t\u0103ng c\u01a1 h\u1ed9i gi\u00e0nh \u0111\u01b0\u1ee3c ph\u1ea7n th\u1eafng th\u00ec kh\u00f4ng ph\u1ea3i ng\u01b0\u1eddi ch\u01a1i n\u00e0o c\u0169ng n\u1eafm \u0111\u01b0\u1ee3c. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 m\u1ed9t s\u1ed1 c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1<\/strong> ch\u00ednh x\u00e1c nh\u1ea5t qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/em><\/p>\n D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft c\u1ee7a ng\u00e0y tr\u01b0\u1edbc \u0111\u00f3, b\u1ea1n n\u00ean li\u1ec7t k\u00ea r\u00f5 27 gi\u1ea3i theo m\u1ed9t h\u00e0ng d\u1ecdc v\u00e0 quan s\u00e1t th\u1eadt k\u1ef9 xem trong 3 gi\u1ea3i li\u1ec1n k\u1ec1 nhau m\u00e0 c\u00f3 2 s\u1ed1 M \u2013 N th\u00ec:<\/p>\n N<\/p>\n M N M<\/p>\n N<\/p>\n Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1ch soi l\u00f4 \u0111\u1ec1 h\u00ecnh qu\u1ea3 tr\u00e1m, ng\u01b0\u1eddi ch\u01a1i n\u00ean l\u1ef1a ch\u1ecdn con l\u00f4 MN \u0111\u1ec3 ti\u1ebfn h\u00e0nh ch\u01a1i trong v\u00f2ng 2 ng\u00e0y.<\/p>\n V\u00ed d\u1ee5: Khi li\u1ec7t k\u00ea k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a ng\u00e0y h\u00f4m tr\u01b0\u1edbc ra gi\u1ea5y, nh\u1eadn th\u1ea5y d\u1ea5u hi\u1ec7u sau \u0111\u00e2y: 44326 \u2013 87479 \u2013 4488. Theo v\u00ed d\u1ee5 \u0111\u00e3 n\u00eau ra tr\u00ean \u0111\u00e2y, c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c 74 \u0111\u00e3 \u0111\u00fang theo tr\u01b0\u1eddng h\u1ee3p qu\u1ea3 tr\u00e1m. Ng\u01b0\u1eddi ch\u01a1i ti\u1ebfn h\u00e0nh nu\u00f4i s\u1ed1 74 trong v\u00f2ng 2 ng\u00e0y \u0111\u1eb7t c\u01b0\u1ee3c s\u1eafp t\u1edbi s\u1ebd c\u00f3 c\u01a1 h\u1ed9i gi\u00e0nh \u0111\u01b0\u1ee3c ph\u1ea7n th\u1eafng cao.<\/p>\nSoi c\u1ea7u l\u00f4 \u0111\u1ec1 qu\u1ea3 tr\u00e1m<\/strong><\/h2>\n