What are the meanings of (1), (2), (3) and (4) written on the math test paper for postgraduate entrance examination? Is it divided into four volumes? Which is the hardest?
No, the difficulty and scope of mathematics are different for different majors. For example, engineering and science are often more difficult. You have to take one or two exams, while economics has to take three or four exams in different fields. 2009 and Sanhe. So I didn't count to four, which is closely related to your major.