Ngh\u1ecb lu\u1eadn x\u00e3 h\u1ed9i: Ph\u00e2n t\u00edch t\u00e1c h\u1ea1i c\u1ee7a th\u00e1i \u0111\u1ed9 thi\u1ebfu trung th\u1ef1c trong thi c\u1eed<\/a><\/blockquote><\/iframe>