Mathematics is a high number for science and engineering majors.

Math II: Some economics majors with higher requirements for mathematics will also require this test, such as economics in Tsinghua.

Mathematics 3 is economic management mathematics, that is, calculus, probability and linear algebra in university studies. In fact, the same is true of Math 2, but because Math 3 is also taught by students majoring in management, it is simplified compared with Math 2. Many chapters in those three economic mathematics textbooks are not tested. See the explanation of professional recruitment in Cai Xi Graduate School.

Economics is the same as above, because there are more difficult branches of economics, such as econometrics, so different majors have different degrees of investigation of professional knowledge.

The same is true of English one.

Take a closer look at the website of Cai Xi Graduate School ~ It seems that it is necessary to apply for cross-majors, hehe.