Preparatory classes are specially designed for ethnic minorities. Generally, the scores are lower than two or one, and good schools are a few points lower. But it is a good way for students who want to go to two or one school without two or one scores.

As far as I know, Central University for Nationalities, Dalian University for Nationalities, changchun university of science and technology, Changda University and Beihua University are all good schools.

I hope my answer is helpful to you.