Generally speaking, you should do well in the exam if you are not a hot major, but it is usually not directly related to the major. The difficulty of postgraduate entrance examination mainly depends on the reputation and location of the enrollment unit, because the candidates are different.
3. No matter what major you apply for, famous schools such as Peking University and Fudan University are not easy to take the exam, but enrollment units in remote places are easy to take the exam. As long as you reach the national line, you can take the second interview.