There are some common mistakes that need to be avoided in the process of brushing questions for postgraduate entrance examination. The following are some common mistakes and suggestions on how to avoid them:

1. Blind pursuit of quantity: Some candidates will fall into a misunderstanding that they can get good grades as long as they brush enough questions. But it is not advisable to blindly pursue quantity and ignore quality. Brushing the problem focuses on understanding and mastering the ideas and methods of solving the problem, not just doing it to complete the task.

2. Do not pay attention to basic knowledge: The topics of postgraduate mathematics often require a deep understanding and mastery of basic knowledge. If the examinee's basic knowledge is not solid, it is difficult to solve complex problems. Therefore, before brushing the questions, candidates should review and consolidate the basic knowledge to ensure a clear understanding of the basic concepts and theorems.

3. Don't make a wrong summary: making a wrong summary is one of the important ways to improve the level of mathematics. By analyzing their own mistakes, we can find out the problems in the ideas and methods of solving problems, which can help candidates better understand and master the knowledge points. Therefore, candidates should develop the habit of summarizing wrong questions and record and analyze their mistakes in time.

4. Do not pay attention to the ideas and methods of solving problems: Some candidates only pay attention to the answers when brushing questions, but ignore the ideas and methods of solving problems. This will cause candidates to encounter similar problems in the exam, and they can't flexibly use what they have learned to solve the problems. Therefore, candidates should pay attention to understanding and mastering the ideas and methods of solving problems, not just remembering the answers.

5. Don't take mock exams: mock exams are one of the effective ways to test your math level. Through the mock exam, candidates can understand their own problems in time management and problem-solving ability, and adjust their study plans and strategies in time. Therefore, candidates should regularly conduct mock exams to test their learning effects.