National open education
CDB has no entrance exam, so it is easy to get in and out.
self-taught examination
Self-study means that every subject has to take the national examination. There are two exam opportunities a year, and you can apply for four subjects at a time. When you pass all the subjects, you can go to school to apply for graduation with qualified transcripts.
Network distance education
Online education also has entrance exams, but they are all organized by colleges and universities, so it will be easier. After that, both enrollment and study are in the form of online education, and the time is relatively easy to control, so if you want to be simple, you can choose online education and CDB, both of which are relatively simple.
Adult college entrance examination
Adult college entrance examination is a national examination once a year, usually in March and June every year. Adult college entrance examination subjects are the same as ordinary college entrance examination, including Chinese, mathematics, foreign languages, politics, history, geography, physics, chemistry, biology and so on.