20%~30%。 According to the official report of Northwest University, the re-examination of postgraduate entrance examination materials accounts for 20%~30%, and Northwest University is located in Xi 'an, the ancient capital. Appreciate the glory of Qin and Han dynasties and carry forward the civilization of the prosperous Tang Dynasty. It is a national key comprehensive university with complete disciplines and equal emphasis on teaching and scientific research, and a national "2 1 1 engineering" key construction institution.