B\u1ed9 GD&\u0110T c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh l\u1ecbch thi THPT qu\u1ed1c gia n\u1ebfu ngh\u1ec9 h\u1ecdc k\u00e9o d\u00e0i<\/a><\/blockquote><\/iframe>