1. First-tier cities: Beijing, Shanghai, Guangzhou, Shenzhen, Chengdu, Hangzhou, Nanjing, Wuhan, Tianjin, Xi 'an, Chongqing, Qingdao, Shenyang, Changsha, Dalian, Xiamen, Wuxi, Fuzhou and Jinan, *** 19.
2. Second-tier cities: Ningbo, Kunming, Suzhou, Zhengzhou, Changchun, Hefei, Nanchang, Harbin, Changzhou, Yantai, Nanning, Wenzhou, Shijiazhuang, Taiyuan, Zhuhai, Nantong, Yangzhou, Guiyang, Dongguan, Xuzhou, Daqing, Foshan, Weihai, Luoyang, Huai 'an, Hohhot, Zhenjiang, Weifang, Guilin and Zhongshan.
3. Third-tier cities: Sanya, Ganzhou, Jiujiang, Jinhua, Taian, Yulin, Xuchang, Xinxiang, Zhoushan, Cixi, Nanyang1; First-tier cities: Beijing, Shanghai, Guangzhou, Shenzhen, Chengdu, Hangzhou, Nanjing, Wuhan, Tianjin, Xi, Chongqing, Qingdao, Shenyang, Changsha and Dalian.