‘Th\u1eddi gian bi\u1ec3u v\u00e0ng’ cho s\u0129 t\u1eed \u00f4n thi n\u01b0\u1edbc r\u00fat THPT c\u1ee7a th\u1ee7 khoa Nam \u0110\u1ecbnh 2017<\/a><\/blockquote><\/iframe>