The subject wants to ask, "Is it difficult to take the postgraduate entrance examination for mathematics for 20 years?" It's huge. Compared with previous years, in 2020, the topics of Math II for postgraduate entrance examination are more difficult, especially the multiple-choice questions and fill-in-the-blank questions. The difficulty coefficient of multiple choice questions is improved. At the same time, in 2020, the average score of Mathematics II in the postgraduate entrance examination was 59 points, which was lower than that in previous years.