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    Nucleic acid testing conducted in Heihe, NE China

    (Xinhua) 09:31, November 08, 2021

    A medical worker prepares to take a swab sample from a resident for nucleic acid testing in Henantun Village of Xingfu Town in Heihe, northeast China's Heilongjiang Province, Nov. 7, 2021. (Xinhua/Wang Song)


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    (Web editor: Zhong Wenxing, Liang Jun)

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