The most difficult year for the second postgraduate entrance examination in mathematics is 20 18. This year, the difficulty coefficient of Math II reached 0.38, which is the highest value over the years. The topic involves a wide range of knowledge points and a large amount of calculation, which makes many candidates unprepared.

This year, the average score of Math II hit a record low, only about 70 points. This year's test questions are more difficult, and some relatively difficult questions have appeared in the test questions. Many candidates feel unable to start in the exam.