There are two broad and narrow explanations about the cross-exam major, that is, the former is the cross-major postgraduate entrance examination, and the latter is the postgraduate entrance examination between different majors in the same department.

Generally speaking, there are four main reasons for choosing a cross-examination major:

When I was in college, I was transferred to a major I didn't like. 2 I am not interested in my major and have no love for a long time. (3) Profession is relatively unpopular. ④ Purely seeking knowledge and wanting to learn theoretical knowledge in many fields.

It is difficult to cross majors, mainly in three aspects:

① Specialized courses need to be learned from scratch. ② It is difficult to collect data, real questions and information. (3) Because of difficulties and pressures, it is easy to give up halfway.