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Aerial photo taken on Nov. 19, 2019 shows a view of mountains of Nangqen County in Yushu Tibetan Autonomous Prefecture, northwest China's Qinghai Province. (Xinhua/Zhang Long)
Aerial photo taken on Nov. 19, 2019 shows a view of mountains of Nangqen County in Yushu Tibetan Autonomous Prefecture, northwest China's Qinghai Province. (Xinhua/Zhang Long)