It is enough to look at the real math problems in the past ten years. You will find that the test questions are getting more and more difficult from the real questions ten years ago, so it is of little significance to do the real questions ten years ago. Just study the real math in the past ten years by yourself, look at Li Yongle's review book and his 660 questions, and then do the real math simulation questions (personal suggestions from people who have experienced it ~).