According to your specific situation, I think there is nothing difficult except English, but nothing is easy. English is almost impossible to surprise, so I won't say it. The difficulty of advanced mathematics lies in the mastery of the basics, and there are not many problems (if one is difficult, it will be difficult to die, so just give up). The key to getting into 75 is to memorize all kinds of questions, buy all the final papers in the past five years, learn well, and it is best to memorize them. It's hard to say about physics ... it's basically the application of advanced mathematics, and there is almost no other new content ... C is the easiest way to review advanced mathematics, but it's also difficult to learn it without learning it. There are many tricks and knowledge points, and the review of high numbers focuses on filling in the blanks, so we must understand some error-prone places, such as the boundaries of arrays. 75 is not difficult, the key depends on your review attitude. Almost all courses in the university are reviewed in the same way as advanced mathematics.