1. First of all, in the intensive review stage, researchers must practice more and exercise their problem-solving ability. Understanding analysis does not mean that you can do the problem. You should solve problems independently, especially pay attention to the cultivation of computing ability. Judging from the trend of postgraduate entrance examination in recent years, calculation is a key point of postgraduate entrance examination.

2. Be sure to ensure the accuracy of calculation in the usual problem-solving process. Otherwise, there may be questions that can be done well, but when they arrive at the examination room, they lose unnecessary marks because of poor calculation.

3. Secondly, questions should be targeted. The focus is on the knowledge points and weak points that have been frequently tested over the years. For those parts that you have mastered better, you can do less exercises appropriately. For less popular knowledge points, you can first review the knowledge points that you often test, and then strengthen them in a targeted manner.

4. Third, summing up is also very important. Doing more questions is the premise, but after finishing the questions, you must think more and summarize more. For the same type of questions, it is necessary to summarize the key points of the exam and the methods of solving them. When doing the whole set of papers, we should pay attention to summing up the experience of answering questions and allocating time.

The last point is to aim at your own characteristics and be targeted. You know yourself best, so you should plan the strengthening stage according to your own characteristics, and don't rigidly copy some plans on the Internet.