What is a first-level subject and what is a second-level subject?

First-level subjects are major categories of subjects, equivalent to majors, and are represented by four-digit codes; second-level subjects are sub-categories of subjects below them, equivalent to directions, and are generally offered by high-level schools themselves. Represented by a six-digit code.

Second-level disciplines cannot apply to become first-level disciplines, but they can apply to become master's and doctoral degree-granting points. Once the application for a first-level discipline is successful, all second-level disciplines under it can apply to become doctoral degree-granting points. point.

The first-level subjects are divided into several second-level subjects. For example, mathematics is divided into five second-level subjects such as basic mathematics and computational mathematics. Doctoral and master's degrees are awarded to second-level disciplines. In general, the number of doctorate and master's degrees refers to the number of second-level disciplines that can award doctorates and master's degrees.