There are many courses failed in junior year, and the credits have not been completed, which can not meet the conditions for participating in graduation thesis design. At this time, you need to make up the exam to make up the credits. The condition that senior students in the Department of Mathematics of Tsinghua University are not allowed to participate in the graduation project is that there are many failed courses in the junior year, and the credits have not been completed, which can not meet the conditions for participating in the graduation thesis design. At this time, you need to make up the exam to make up the credits. The purpose of graduation project is to cultivate students' ability to comprehensively apply what they have learned and independently analyze and solve practical problems.