\u0110\u00e1nh \u0111\u1ec1 b\u1ea1ch th\u1ee7 l\u00e0 c\u00e1ch \u0111\u00e1nh duy nh\u1ea5t 1 s\u1ed1 \u0111\u1ec1. Ch\u00ednh v\u00ec th\u1ebf b\u1ea1n s\u1ebd gom \u0111\u01b0\u1ee3c ti\u1ec1n m\u00ecnh c\u00f3 \u0111\u00e1nh v\u00e0o m\u1ed9t con, nh\u01b0 v\u1eady \u0103n c\u0169ng s\u1ebd \u0103n \u0111\u01b0\u1ee3c nhi\u1ec1u h\u01a1n. Tuy nhi\u00ean, do \u0111\u00e1nh 1 con n\u00ean t\u1ec9 l\u1ec7 tr\u00fang r\u1ea5t th\u1ea5p n\u1ebfu b\u1ea1n kh\u00f4ng bi\u1ebft c\u00e1ch t\u00ednh \u0111\u1ec1 b\u1ea1ch th\u1ee7 chu\u1ea9n<\/strong>. N\u1eafm b\u1eaft \u0111\u01b0\u1ee3c t\u00e2m l\u00fd \u0111\u00f3, ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p gi\u00fap c\u00e1c b\u1ea1n nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p b\u1eaft b\u1ea1ch th\u1ee7 \u0111\u1ec1 chu\u1ea9n hi\u1ec7n nay.<\/p>\n
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