B\u01b0\u1edbc 1: T\u00ecm \u0111i\u1ec1u ki\u1ec7n \u00e1p d\u1ee5ng soi c\u1ea7u l\u00f4<\/strong><\/h3>\nTh\u00f4ng th\u01b0\u1eddng c\u00e1c b\u1ea1n v\u1eabn lu\u00f4n ngh\u0129 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ec3 soi c\u1ea7u l\u00f4 \u0111\u1ec1. Tuy nhi\u00ean \u0111\u00e2y l\u00e0 suy ngh\u0129 kh\u00f4ng h\u1ec1 \u0111\u00fang m\u1ed9t ch\u00fat n\u00e0o. M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau s\u1ebd c\u00f3 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n soi c\u1ea7u ri\u00eang nh\u1eb1m \u0111\u1ea3m b\u1ea3o mang \u0111\u1ebfn cho c\u00e1c b\u1ea1n c\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng cao nh\u1ea5t c\u00f3 th\u1ec3.<\/p>\n
\u0110\u1ec3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 2 nh\u00e1y c\u00e1c b\u1ea1n ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng khi k\u1ebft qu\u1ea3 duy nh\u1ea5t c\u1ee7a ng\u00e0y h\u00f4m \u0111\u00f3 v\u1ec1 1 l\u00f4 2 nh\u00e1y, c\u00f2n trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c v\u1ec1 2 nh\u00e1y k\u00e9p, 3 nh\u00e1y hay 2 l\u00f4 2 nh\u00e1y c\u0169ng kh\u00f4ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. Trong m\u1ed9t th\u00e1ng c\u00e1c b\u1ea1n ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eeb 5 \u0111\u1ebfn 8 l\u1ea7n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/p>\n