Look at the ranking first:

20 17 graduate school of bridge and tunnel engineering, 20 schools nationwide recruit graduate students of bridge and tunnel engineering to participate in the ranking.

Tongji University ranks first, Hunan University ranks second and Harbin Institute of Technology ranks third. The following is a detailed list of graduate schools specializing in bridge and tunnel engineering:

Chang 'an University ranks ninth, so the difficulty of postgraduate entrance examination is not great compared with top universities.