This is a necessary step. The written college entrance examination refers to the selective examination for college students to enter the undergraduate stage, which is the examination system for college students to enter undergraduate colleges in Chinese mainland.

Undergraduate unified recruitment refers to the educational policy of selecting outstanding college graduates to enter undergraduate study in the form of unified recruitment, which is the general designation of ordinary undergraduate, ordinary junior college and fresh junior college by the Ministry of Education. The exam for the unified examination is generally once a year. After the expiration of the study period, all subjects are qualified, and the undergraduate colleges will issue the general undergraduate diploma. After graduation, students' first degree is undergraduate.