X\u00e9t tuy\u1ec3n h\u1ecdc b\u1ea1 THPT: L\u1ef1a ch\u1ecdn th\u00f4ng minh \u0111\u1ec3 tr\u1edf th\u00e0nh sinh vi\u00ean \u0111\u1ea1i h\u1ecdc<\/a><\/blockquote><\/iframe>