No, the graduation rate of universities should not be a hard indicator. In other words, everyone can graduate as long as their grades meet the graduation standards. The graduation rate of our school is 100% (unless tuition is not paid). The same is true for undergraduate courses. If you all get a bachelor's degree, you will all get a bachelor's degree. But generally speaking, the teacher will control this ratio and adjust it according to the difficulty of the problem. This is the role of proposition groups and so on.