A visitor talks with a security robot at the main venue of the National Mass Innovation and Entrepreneurship Week in Shenzhen, south China's Guangdong Province, Oct. 14, 2016. (Xinhua/Mao Siqian)
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A visitor talks with a security robot at the main venue of the National Mass Innovation and Entrepreneurship Week in Shenzhen, south China's Guangdong Province, Oct. 14, 2016. (Xinhua/Mao Siqian)
