Generally speaking, you need to take math, English and politics in the initial exam of postgraduate entrance examination. Mathematics can be one or two according to different majors, and there are professional exams. Because you didn't say your major, you can't say it in more detail. There is nothing to say in the public exam. Everyone has learned the national unification proposition, but the professional exam is different. Every school has its own proposition. Go to school if possible. Of course, not every major has it. I have a senior who went there for two months when he was admitted to Tongji Architecture. Of course, she has gained a lot. If there is no relevant course training, you can contact their classmates at school, including the textbooks and exercises used. The question of the second interview is relatively simple. If you feel there is an opportunity after the initial test, you should start preparing immediately. Each college will announce its own re-examination plan. You can also go online to search for the experiences of seniors and sisters who participated in the second interview in previous years.

There are still many people taking the Beihang test, but everyone is on the same platform. The main purpose of postgraduate entrance examination is your persistence. From the examples around me, people who persist can generally achieve their goals.

I hope it will help you, and I wish you success!