X\u00e9t tuy\u1ec3n \u0111\u1ea1i h\u1ecdc b\u1eb1ng k\u1ef3 thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c c\u00f3 \u0111\u1ea3m b\u1ea3o c\u00f4ng b\u1eb1ng?<\/a><\/blockquote><\/iframe>