B\u00e0i thi tr\u1eafc nghi\u1ec7m \u0111\u01b0\u1ee3c ch\u1ea5m \u0111i\u1ec3m nh\u01b0 th\u1ebf n\u00e0o trong k\u00ec thi THPT Qu\u1ed1c gia 2017<\/a><\/blockquote><\/iframe>