It doesn't matter. I have participated in the college entrance examination twice. In fact, I am not very good at math now, and it is normal, because there are many things to learn now. But when I entered the college entrance examination, the topic was basically decided, and there would be a test range. I found it when I sprinted to the third year of high school. I didn't know much about it at that time, but the targeted exercises in senior three will be found in the simulation questions of various schools. Now all you have to do is follow the teacher's footsteps. In the third year of high school, the teacher will take you to review the key points from beginning to end. Believe me, believe in yourself, do more problems, but don't die too much. Flexible application. Don't do everything. Do everything.