B\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch th\u1ee9c xu\u1ea5t hi\u1ec7n theo quy \u01b0\u1edbc c\u1ee7a c\u00e1c c\u1eb7p s\u1ed1 g\u1ed3m 2 ch\u1eef s\u1ed1 v\u00e0 th\u01b0\u1eddng xuy\u00ean \u0111i k\u00e8m v\u1edbi nhau theo quy lu\u1eadt nh\u1ea5t \u0111\u1ecbnh. C\u00f9ng theo d\u00f5i chia s\u1ebb ngay \u0111\u00e2y \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c b\u1ed9 s\u1ed1 c\u0169ng nh\u01b0 c\u00e1c d\u1ea1ng ph\u00e2n chia b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 nh\u01b0 th\u1ebf n\u00e0o nh\u00e9.<\/p>\n
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