Mandarin, that is, standard Chinese. Putonghua is the common language for communication among all ethnic groups in China, with Beijing accent as the basic pronunciation, northern dialect as the basic dialect and typical modern vernacular as the grammatical norm.
Putonghua examination is mainly used for teacher qualification examination and broadcast hosting. According to the relevant regulations of the state, applicants for teacher qualification should reach Grade B and above, among which China teachers should reach Grade A and above.