It's difficult for Ding Jian Education to be admitted to a famous Anhui university. The reason why the entrance examinations for six universities in Anhui are so difficult is because.

1. Many schools participated in the entrance examination of famous universities in Anhui. In order to improve the selection rate, more difficult papers are selected.

2. The entrance examination for famous universities in Anhui is a very important examination with a large scale. In order to distinguish it from ordinary exams, it is a rare paper specially selected.