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"March for Science" Rally and Science Expo held in Los Angeles

Source: Xinhua| 2018-04-15 09:28:18|Editor: Liangyu
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US-LOS ANGELES-MARCH FOR SCIENCE-ACTIVITY

A boy controls a rolling robot during the "March for Science" Rally and Science Expo in Los Angeles, the United States, April 14, 2018. (Xinhua/Li Ying)

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KEY WORDS: Science
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