The final exam is to examine how much we have absorbed the knowledge we have learned, but for college knowledge, the teacher usually gives you a range of flowers, which greatly reduces the difficulty of your exam. I remember my college math teacher said in the last class, "The examination process is extremely strict, and the grades are extremely loose." It really means that as long as you don't do illegal exams in the examination room and you do well in class, the university teacher will try to "hook you up" and give you as many points as possible.