First of all, let me fully explain the number 1, 2,3.
The number one and the number three are both high numbers, probabilities and line generations, and the number two does not test line generations. However, it is also a high number, and it is more difficult to count one than three. For example, count three does not test Fourier series, count one; You have a wide range of tests such as gradient and divergence, even if you study too high, it is normal. In the final analysis, you have all the knowledge in the textbook, but not all. You often have to take several chapters with stars in the catalogue, but this knowledge is in any book. The main reasons for choosing teaching materials are arrangement, explanation, three-dimensional and so on.
If you count to 3, it is still necessary to choose textbooks, but it is not necessary to count to 1. You basically passed the exam. Tongji's high number is really good. We used this textbook when we were freshmen.
In fact, the first entrance examination for mathematics is to read textbooks and do after-school problems, and then read the whole book. Basically, it's not Chen Wendeng or Li Yongle. Although the books are different, they are not very different. Just pick one and do it. This is the second time.
Mathematics must be reviewed many times, especially the number one. There are too many knowledge points. God knows what he took in the exam. He can't answer unless he reviews. Many knowledge points are far away, such as how many asymptotes a function has and so on. Even if it is a big knowledge point, it may be expected. For example, if you look at the high number first, then look at the line generation, and wait until the probability, you will forget some high numbers. This is normal.