Postgraduate exams have two requirements for retest scores. One is that 34 985 colleges and universities draw their own scores, and the scores of single subjects are higher, and the scores of mathematics are generally 70 to 80.

The other is that other schools, except 34 985 independent marking schools, implement the national line, and generally require a score of 50 or more in a single subject of mathematics. Therefore, there are three national lines for postgraduate mathematics.