Generally speaking, there are fewer test sites in the joint exam than in the unified exam, and the reserved exams are the least (the reserved exams are usually put temporarily).
The cities of the 40 test sites are roughly as follows:
Beijing, Tianjin, Shijiazhuang, Taiyuan, Hohhot, Shenyang, Changchun, Harbin, Shanghai, Nanjing, Hangzhou, Hefei, Fuzhou, Nanchang, Jinan, Zhengzhou, Wuhan, Changsha, Guangzhou, Nanning, Haikou, Chongqing, Chengdu, Guiyang, Kunming, Xi, Lanzhou, Xining, Yinchuan, Urumqi, Lhasa and Shenzhen. Candidates can choose the examination place according to their actual situation.