The so-called certificate is issued according to the ratio of 1: 4, that is, the enrollment institutions can determine their own professional achievement eligibility criteria according to the characteristics of each major and the relevant requirements of the Ministry of Education, but the relevant regulations require that the certificate issued is at most four times that of the enrollment plan, and the specific ratio is finally determined by the school.

For example, a university's popular singing major plans to recruit 20 students, that is, up to 80 candidates, and finally the college selects 20 students according to the admission principle of this major.