The 22nd China Beijing International High-Tech Expo opened in Beijing, capital of China, on Oct. 24, 2019.
Xinhua丨Updated: October 25, 2019
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Photo taken on Oct. 24, 2019 shows police robots displayed at the 22nd China Beijing International High-Tech Expo in Beijing, capital of China. The four-day expo opened here Thursday, drawing more than 1,200 exhibitors. [Photo/Xinhua]