X\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft lu\u00f4n l\u00e0 t\u1eeb kh\u00f3a \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi t\u00ecm ki\u1ebfm nh\u1ea5t. Th\u1ed1ng k\u00ea con s\u1ed1 m\u1ed7i n\u0103m v\u1ec1 l\u01b0\u1ee3t ng\u01b0\u1eddi ch\u01a1i x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft c\u1ea7u may l\u00e0 v\u00f4 c\u00f9ng l\u1edbn. <\/span><\/p>\n V\u1eady m\u1ea5y gi\u1edd c\u00f3 k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1? C\u00e1c \u0111\u00e0i kh\u00e1c nhau x\u1ed5 s\u1ed1 c\u00f3 tr\u00f9ng khung gi\u1edd? T\u1ea5t c\u1ea3 c\u00e1c th\u1eafc m\u1eafc c\u1ee7a b\u1ea1n v\u1ec1 khung gi\u1edd m\u1edf th\u01b0\u1edfng k\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c lo\u1ea1i h\u00ecnh x\u1ed5 s\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt d\u01b0\u1edbi \u0111\u00e2y. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap ng\u01b0\u1eddi ch\u01a1i c\u00f3 nh\u1eefng ki\u1ebfn th\u1ee9c b\u1ed5 \u00edch v\u1ec1 x\u1ed5 s\u1ed1 c\u0169ng nh\u01b0 th\u00f4ng tin v\u1ec1 gi\u1edd c\u00f3 k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 \u0111\u1ec3 kh\u00f4ng b\u1ecf l\u1ee1.<\/span><\/p>\n T\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c h\u00ecnh th\u1ee9c x\u1ed5 s\u1ed1 kh\u00e1c nhau s\u1ebd c\u00f3 c\u00e1c khung gi\u1edd m\u1edf th\u01b0\u1edfng kh\u00e1c nhau. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/span><\/p>\n M\u1ee5c l\u1ee5c<\/p>\n<\/div>\n
\n\nM\u1ea4Y GI\u1edc C\u00d3 K\u1ebeT QU\u1ea2 X\u1ed4 S\u1ed0<\/h1>\n<\/header>\n<\/div>\n
M\u1ea4Y GI\u1edc C\u00d3 K\u1ebeT QU\u1ea2 X\u1ed4 S\u1ed0<\/h1>\n<\/header>\n<\/div>\n\n
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