Various activities held across China to greet annual day for science popularization
Source: Xinhua| 2018-09-15 21:02:44|Editor: mmm
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Children look at a deep-sea exhibit at Shanghai Natural History Museum in east China's Shanghai, Sept. 15, 2018. A variety of activities were held across the country to greet the annual day for science popularization in China. (Xinhua/Fang Zhe)
