China Beijing Intl Fair For Trade In Service kicks off (5/6)

A news photographer takes a photo of a model demonstrating the system capable of controling air pollution at the 3rd China Beijing International Fair For Trade In Service, in Beijing, China, May 28, 2014. The service trade fair kicked off here Wednesday, attracting some 2,700 companies from 117 countries and regions. (Xinhua/Luo Xiaoguang)