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Science and technology experience items attract crowds in Beijing

(Xinhua) Updated: 2016-05-31 09:51 Comments

Science and technology experience items attract crowds in Beijing

A man looks at a police unmanned aerial vehicle at the fourth China Beijing International Fair for Trade in Services in Beijing, May 30, 2016. Science and technology experience items attracted many visitors during the five-day fair that kicked off on Saturday. [Photo/Xinhua]

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