It is a comprehensive and detailed tutorial handout with knowledge points. Each chapter has a knowledge frame, which is consistent with the content of the teacher's class, so that everyone can save the time of taking notes, just remember the content emphasized by the teacher in class, and each chapter has after-school exercises, so that after learning the content of each chapter, everyone can do exercises to find out where they learned and what they didn't understand, and then check for gaps and make up what they don't understand.
The second is the comprehensive promotion. After laying a good foundation in the early stage, we need to improve the stage to summarize our knowledge concisely. The improvement chapter lists the problem-solving skills and ideas of high-frequency test sites in detail, and then matches them with the real questions in the corresponding chapters over the years, which will enable you to quickly master the knowledge points and problem-solving skills, even if you face the real questions. This stage also needs supporting exercises. I recommend 660. Only when you have learned knowledge and applied it to practice can you really understand it.