Guizhou University is relatively remote. So the postgraduate entrance examination is not popular. Almost all majors, in 2 1 1 (now double-class) universities, are relatively easy to test. In your major, it depends on what your major is. Otherwise, there will always be risks in cross-disciplinary examination and research. Clinical medicine or something is almost impossible.
The lowest score for postgraduate entrance examination is agronomy. Guizhou University has an agricultural college.