A visitor looks at an LED plant-growing apparatus displayed at the 4th China Beijing International Fair for Trade in Services (CIFTIS) in Beijing, May 30, 2016. CIFTIS attracts a lot of interest for its demonstration projects in sci-tech experience, such as brainwave-powered racing cars, companion robots, VR games, and new energy vehicles.[Photo/Xinhua]
A visitor encounters a robot at the 4th China Beijing International Fair for Trade in Services (CIFTIS) in Beijing, May 30, 2016.[Photo/Xinhua]
Visitors experience brainwave-powered racing cars at the 4th China Beijing International Fair for Trade in Services (CIFTIS) in Beijing, May 30, 2016.[Photo/Xinhua]
A visitor tries a driving simulator at the 4th China Beijing International Fair for Trade in Services (CIFTIS) in Beijing, May 30, 2016.[Photo/Xinhua]
A visitor looks at unmanned police vehicles at the 4th China Beijing International Fair for Trade in Services (CIFTIS) in Beijing, May 30, 2016.[Photo/Xinhua]