53 is an old teaching assistant. The compulsory question is a teaching aid that has risen rapidly in recent two years. Since my sophomore year, I have bought several books on trigonometric functions and plane vectors, series inequalities, physical experiment topics and modern Chinese reading. The questions are all novel, different from the exercises I did before, and I feel that the questions are very new. Chinese has also encountered some current political hotspots. In the third year of high school, I decisively bought a bound book and compared it with the book bought in the second year of high school. I didn't find any duplicate problems. It's completely different from other exercise books I bought in my freshman year. Therefore, personal recommendation must be brushed ~ but it depends on personal preferences ~ I wish you a smooth college entrance examination!