Normal. According to Sina's website. Com, Hefei 20 13 "Yi Mo" mathematics is as difficult as the college entrance examination in recent two years, which belongs to normal difficulty. The number, types and types of "Yimo" mathematics liberal arts examination questions are completely consistent with the Anhui college entrance examination in recent three years, and the difficulty ratio and knowledge structure are close to the real questions in the college entrance examination in recent two years.