B\u1ed9 tr\u01b0\u1edfng Gi\u00e1o d\u1ee5c: X\u00e9t t\u1ed1t nghi\u1ec7p THPT v\u1edbi t\u1ef7 l\u1ec7 70-30% l\u00e0 h\u1ee3p l\u00fd<\/a><\/blockquote><\/iframe>