The second kind of credits can be accumulated all the time.

College students need certain points in the second class to exchange credits. If the points are not enough to change credits and the credits are not enough to get a degree, then the second class will affect graduation.

Students can increase their credits by participating in club activities or training seminars, such as graduation certificates, degree certificates, double certificates and second-class credits, English CET-4 and CET-6 certificates and computer certificates, as well as some provincial or national competition honorary certificates, such as national physics competitions and mathematical modeling competitions.