At present, the concept of education refers to three kinds: basic education (primary school, middle school and junior high school), higher education (university and junior college) and adult education (amateur vocational college, TV University, correspondence, various trainings or continuing education, etc. ). Adult education also includes higher education (such as undergraduate and junior college for adults). However, the difference between higher education and adult education is that those who participate in basic education refer to colleges and universities that have participated in the national unified examination since high school, and the graduation certificate is the graduation book of ordinary higher education. The graduation certificate of college students who take the entrance examination of adult higher education every year 10 is the graduation certificate of adult higher education. There is no complete general education.