1, CET-4 and CET-6 certificates: they are important certificates for evaluating students' English level and play an important role in improving students' English ability and enhancing their international communication ability. Adding credits is one of the common certificates.

2. Vocational qualification certificate: For students in a specific major or industry, obtaining the corresponding vocational qualification certificate can prove their professional ability and knowledge level in this field, which is helpful to enhance their professional competitiveness and is also an effective certificate to increase their credits.