You don't have to pay, but you must reach a certain score. I was admitted to the undergraduate course with a drop of 80 points. I applied for the exam before the exam, and I applied for it (in line with my own conditions). At that time, I was only a few points short of the undergraduate line, and the preparatory class dropped, and then I took the exam. However, many people missed the college entrance examination by nearly one point, saying it was 80 points. In fact, everyone's scores are not much different. At that time, the preparatory classes of four universities in the province were all together. Their place of study is Jilin Institute of Education. A year later, they returned to the school headquarters and re-divided my preppie students into various departments. If you are almost absent and don't want to repeat, you can choose the preparatory class.