Generally speaking, the written test only adds 5 points. If you fail in the interview, you won't need 5 points, so you have to pass the written test and interview to get at least 5 points. Excellent performance will get more than 10 points. How much you will add depends on your performance and the teacher's judgment. First of all, the situation is 1: If you don't reach the admission score of your province, Tsinghua, then the score of self-enrollment will be used as extra points. If your score can reach the minimum admission line after bonus points, then you can enter Tsinghua, but there is basically no room for choosing a major. . It should be left to study.
Situation 2: When your score reaches the admission line in Tsinghua, it may just be an edge ball. At this time, the extra points for self-enrollment are added to the professional choice after enrollment. For example, if you got 670, but your self-enrollment score is 10, then you can choose your major in the order of 680. This ensures that you can read your favorite major in your favorite university.