I am a graduate student. I think I can give you some advice when reviewing math. Mathematics 1 pays more attention to the flexibility of knowledge, which is more difficult than Mathematics 2 and Mathematics 3. You must want to take the postgraduate exam in science and engineering. You should not only master the basic theorems and concepts, but also have a better understanding and application. From the outline, I suggest you read Li Yongle's books on knowledge points every year. The most important thing is to do a lot of questions. Only to a certain extent can you know what you lack. The difficulty of mathematics 1 has been increasing, and the content of the examination syllabus has not changed much.