People visit the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province, Nov. 16, 2016. The hi-tech fair kicked off in Shenzhen on Wednesday. (Xinhua/Mao Siqian)
People visit the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province, Nov. 16, 2016. The hi-tech fair kicked off in Shenzhen on Wednesday. (Xinhua/Mao Siqian)