Visitors visit inside a motor home during the 2013 China International Exhibition for Caravanning, Motoring, Tourism (CMT China) in Nanjing, capital of east China's Jiangsu Province, March 15, 2013. The three-day exhibition, with the participation of 289 exhibitors from 28 countries and regions, opened in Nanjing Friday. (Xinhua/Shen Peng)