The second category: provincial colleges and universities.

Three categories: other institutions other than the first two categories.

There are two main types of undergraduate colleges: key undergraduate colleges (985, 2 1 1 colleges) and ordinary undergraduate colleges (123 colleges). Ordinary undergraduates = ordinary first-year students = ordinary second-year students = ordinary third-year students = equivalent academic ability.

Undergraduate = one (heavy and ordinary) student = two ordinary students = three ordinary students = the same undergraduate education (but with different emphasis).

Undergraduate class I: the enrollment batch of the national unified examination for enrollment of ordinary colleges and universities is "a batch of undergraduates";

Second-class undergraduate: the enrollment batch of the national unified examination for enrollment of ordinary colleges and universities is "the second batch of undergraduate";