Version A is the most formal, without any marks. Version B is the education version of primary and secondary schools, which is aimed at the majority of primary and secondary school teachers. Version C is the subject version, which is aimed at university teachers and students, and is the language core of the whole country. In principle, it is recognized, but each unit still has its own regulations. For example, our unit does not recognize Anhui agricultural science and Shandong literature. A no problem. BC suggested asking our company clearly.

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