Most engineering majors take the No.1 exam, some engineering nursing majors take the No.2 exam, and economic management majors generally take the No.3 exam. If you need mathematics, you will take the third course in the agricultural examination.

Number two does not test probability, but only high numbers and linear algebra; Number one and number three, linear algebra, probability. Although they have the same scope on the surface, the third one is much more difficult than the first one. It can be said that the difficulty of the number one is to delete the number three, triple integral, surface integral and Fourier series. Review on the count of three. It is normal to be above 130.