Zhang Yu, who has been engaged in advanced mathematics teaching and postgraduate counseling for many years, is a key expert in the national advanced mathematics question bank, a key expert in postgraduate entrance examination over the years, a doctor, and a key teacher in the national excellent curriculum construction of the Ministry of Education.

The national unified entrance examination for graduate students (hereinafter referred to as "postgraduate entrance examination" or "unified examination") refers to the general name of relevant examinations organized by the education authorities and enrollment institutions for the selection of graduate students.

It consists of the initial examination and re-examination organized by the national examination department and the enrollment unit. It is a selective examination, and the type of academic qualifications admitted is general higher education.

Postgraduate enrollment in general higher education is divided into academic master and professional master according to degree types; According to the form of study, it is divided into full-time graduate students and part-time graduate students, all of whom use the same examination subjects and the same score line for selection and admission.

Public subjects such as ideological and political theory, foreign languages, college mathematics, etc. are put forward by the whole country, and specialized courses are mainly put forward by the enrollment units themselves (joining the national unified examination of schools).

Selection requirements vary with different levels, regions, disciplines and majors. The national line for postgraduate entrance examination is divided into two categories: A and B, in which the A line is implemented in one category and the B line is implemented in the second category.

The first district includes: Beijing, Tianjin, Hebei, Shanxi, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Chongqing, Sichuan and Shaanxi. The second district includes Inner Mongolia, Guangxi, Hainan, Guizhou, Yunnan, Tibet, Gansu, Qinghai, Ningxia and Xinjiang.

In the past five years, the number of postgraduate students in China has increased rapidly. From 2065438 to 2007, the number of postgraduate candidates exceeded 2 million for the first time, reaching 20 1 10,000. In 20021year, the number of postgraduate candidates reached 3.77 million, and in five years, the number of candidates for postgraduate entrance examination nearly doubled.