1. There is no problem for doctoral students to teach in general universities after graduation.

2. Want to teach in a key university depends on whether the undergraduate school is a key university 2 1 1:

Many key universities, such as Beijing, generally make it clear that undergraduates must graduate from 2 1 1 key universities before they can apply.

3. The websites of personnel departments of all schools are recruiting teachers' positions and academic qualifications recently. It is suggested to choose a city first, then a school, and finally submit the application materials according to the requirements of the school. Good luck!