We often see the second batch of A-type institutions, the second batch of B-type institutions, or the third batch of A-type institutions and the third batch of B-type institutions, while Guangdong is called 2A, 2B or 3A, 3B. Class A institutions belong to public institutions, while Class B institutions belong to private institutions. The admission scores of A-type institutions are several tens higher than those of the same batch of B-type institutions, but the tuition fees are also half lower.