Weekly choices of Xinhua photo

          Source: Xinhua| 2018-07-01 14:45:32|Editor: Chengcheng
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          XINHUA PHOTO WEEKLY CHOICES

          Maintenance workers check the tracks at the Xinguanjiao Tunnel, the world's longest plateau rail tunnel, along the Qinghai-Tibet Railway in northwest China's Qinghai Province, June 27, 2018. (Xinhua/Hou Deqiang)

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