L\u00f4 k\u00e9p l\u00e0 g\u00ec?<\/h2>\n
L\u00f4 k\u00e9p<\/strong> l\u00e0 m\u1ed9t d\u1ea1ng l\u00f4 \u0111\u1ec1 \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 nh\u1eefng con s\u1ed1 c\u00f3 h\u00e0ng \u0111\u01a1n v\u1ecb v\u00e0 h\u00e0ng ch\u1ee5c gi\u1ed1ng nhau. Nh\u01b0ng th\u1ef1c t\u1ebf kh\u00e1i ni\u1ec7m n\u00e0y c\u00f3 \u0111\u1ebfn 3 lo\u1ea1i ch\u00ednh: K\u00e9p b\u1eb1ng, k\u00e9p l\u1ec7ch v\u00e0 k\u00e9p \u00e2m.<\/p>\n