1. Consolidate basic knowledge: College courses are often deeper and more professional than high schools, and many knowledge points need to be consolidated through a lot of practice. Brushing the questions can help us better understand and master this knowledge and lay a solid foundation for the follow-up study.

2. Improve the ability to solve problems: brushing questions can make us familiar with various types of questions and improve the speed and accuracy of solving problems. This is very helpful for universities to deal with exams and homework, and it can also make us more confident in class.

3. Cultivate study habits: brushing questions is a good learning method, which allows us to develop the habit of reviewing regularly and thinking positively. This habit is very important for college life and future career.

4. Improve competitiveness: In university, we need to face outstanding students from all over the country. By brushing the questions, you can improve your academic level and increase your chances of standing out from the competition.

5. Prepare for postgraduate entrance examination and employment: For students who have postgraduate entrance examination or employment plans, brushing questions is essential. Through a lot of practice, we can improve our test scores and increase our chances of success.

6. Enhance self-confidence: When we have mastered certain knowledge and skills by brushing questions, we will be more confident in our abilities. This kind of self-confidence is very important for us to overcome difficulties and pursue our goals in college life.

In short, although college life is relatively free, brushing topics is still an important way to improve your academic ability and competitiveness. We should cherish college time, study hard and lay a solid foundation for our future.