The real question is usually done three times, and the real question is almost the same in ten years. If you have enough time, you can do it in other years. The problem is not how accurate it is, but your own summary and analysis. Generally, after reviewing all the textbooks in the first round, do it for the first time and remember to write in pencil. At this time, some problems can't be done, but it doesn't matter. The first time is to be familiar with the exam questions and the knowledge points that are often tested, so that the second round of review in summer vacation can concentrate the key points and difficulties. When you take the exam in September, you will find your own shortcomings and small mistakes that are difficult to find in practice. At this time, you should pay attention to summarizing the problem-solving skills and extracting the wrong questions to analyze the reasons. /kloc-when you buy some simulation questions in February, combine the wrong questions when you did the real questions before and cross out all the knowledge points. You must simulate the exam two weeks before the exam to keep you feeling and excited.