The difficulty is small. Generally speaking, the higher the average score, the lower the difficulty. On the contrary, the lower the average score of the test paper, the higher the difficulty of the test paper. According to PubMed.com's data, in 2020, the average score of Grade One in Mathematics for Postgraduate Entrance Examination will be 65.6. The average mathematics score of 20 19 one-year graduate students is 65.6, and that of 202 1 one-year graduate students is 53.8. Compared with 20 19 and 202 1, it is not difficult to take the postgraduate entrance examination in 2020.