\u01afu – nh\u01b0\u1ee3c \u0111i\u1ec3m \u0111\u1ec3 t\u1ea1o d\u00e0n \u0111\u1ec1 g\u1ed3m 20 s\u1ed1 \u0111\u00e1nh quanh n\u0103m<\/figcaption><\/figure>\n\u01afu \u0111i\u1ec3m khi ch\u01a1i d\u00e0n \u0111\u1ec1 20 s\u1ed1 l\u00e0 c\u01a1 h\u1ed9i \u0111\u1ec3 t\u0103ng c\u01a1 h\u1ed9i tr\u00fang l\u1edbn v\u1edbi t\u1ef7 l\u1ec7 cao h\u01a1n so v\u1edbi vi\u1ec7c ch\u1ec9 ch\u1ecdn m\u1ed9t s\u1ed1 duy nh\u1ea5t. B\u1eb1ng c\u00e1ch ch\u1ecdn nhi\u1ec1u s\u1ed1, ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 ph\u1ee7 s\u00f3ng nhi\u1ec1u kh\u1ea3 n\u0103ng tr\u00fang gi\u1ea3i kh\u00e1c nhau, t\u1eeb gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn gi\u1ea3i nh\u1ea5t, gi\u1ea3i nh\u00ec v\u00e0 gi\u1ea3i ba.<\/span><\/p>\nTuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c ch\u01a1i d\u00e0n \u0111\u1ec1 20 s\u1ed1 l\u00e0 chi ph\u00ed \u0111\u1ea7u t\u01b0 s\u1ebd cao h\u01a1n do s\u1ed1 l\u01b0\u1ee3ng c\u01b0\u1ee3c t\u0103ng l\u00ean. Ngo\u00e0i ra, vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 t\u00ednh to\u00e1n k\u1ebft qu\u1ea3 c\u0169ng tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n khi ch\u1ecdn nhi\u1ec1u s\u1ed1. \u0110\u1ed3ng th\u1eddi, kh\u1ea3 n\u0103ng tr\u00fang l\u1edbn v\u1eabn c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 may m\u1eafn v\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u1ea3m b\u1ea3o tr\u00fang s\u1ed1.<\/span><\/p>\nDo \u0111\u00f3, tr\u01b0\u1edbc khi ch\u01a1i d\u00e0n \u0111\u1ec1 20 s\u1ed1, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng \u01b0u – nh\u01b0\u1ee3c \u0111i\u1ec3m \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh ph\u00f9 h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng t\u00e0i ch\u00ednh v\u00e0 m\u1ee5c ti\u00eau ch\u01a1i l\u00f4 \u0111\u1ec1 c\u1ee7a m\u00ecnh.<\/span><\/p>\n<\/span>Nh\u1eefng sai l\u1ea7m c\u1ea7n tr\u00e1nh khi tham gia d\u00e0n \u0111\u1ec1 20 s\u1ed1<\/b><\/span><\/h2>\nN\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u tham gia b\u1ed9 \u201cs\u1ed1 h\u1ecdc\u201d v\u00e0 l\u1ea7n \u0111\u1ea7u t\u1ea1o d\u00e0n \u0111\u1ec1 20 s\u1ed1 th\u00ec kh\u00f4ng th\u1ec3 b\u1ecf qua nh\u1eefng m\u1eb9o ch\u01a1i sau \u0111\u00e2y. Tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng quy t\u1eafc n\u00e0y b\u1ea1n s\u1ebd t\u0103ng c\u01a1 h\u1ed9i gi\u00e0nh chi\u1ebfn th\u1eafng cho m\u00ecnh h\u01a1n.<\/span><\/p>\n<\/span>Qu\u1ea3n l\u00fd v\u1ed1n kh\u00f4ng c\u00f3 k\u1ebf ho\u1ea1ch<\/b><\/span><\/h3>\n\n- Tham gia d\u00e0n \u0111\u1ec1 20 s\u1ed1 m\u00e0 kh\u00f4ng c\u00f3 k\u1ebf ho\u1ea1ch c\u1ee5 th\u1ec3 v\u1ec1 s\u1ed1 ti\u1ec1n \u0111\u1ea7u t\u01b0, s\u1ed1 l\u1ea7n ch\u01a1i, v\u00e0 chi\u1ebfn l\u01b0\u1ee3c r\u00fat lui s\u1ebd khi\u1ebfn b\u1ea1n d\u1ec5 d\u00e0ng b\u1ecb cu\u1ed1n v\u00e0o v\u00f2ng xo\u00e1y thua l\u1ed7.<\/span><\/li>\n
- Qu\u1ea3n l\u00fd v\u1ed1n k\u00e9m d\u1eabn \u0111\u1ebfn vi\u1ec7c \u0111\u00e1nh qu\u00e1 nhi\u1ec1u, \u0111\u1eb7t c\u01b0\u1ee3c kh\u00f4ng h\u1ee3p l\u00fd, v\u00e0 d\u1ec5 d\u00e0ng c\u1ea1n v\u1ed1n.<\/span><\/li>\n<\/ul>\n