1. A 1 3 generally represents the undergraduate majors of private colleges and independent colleges in this city.

A2 of the three books generally represents the undergraduate majors of private universities and independent colleges in other provincial capitals and cities with separate plans.

Second, A 1 batch specialty is a higher vocational college or major located in this city.

Batch A2 majors are other higher vocational colleges or majors located in provincial capitals and cities with separate plans.

In fact, to put it bluntly, it is geographical division. A 1 refers to local, and A2 refers to other places.