ONE of China's important nature preserves is an 8,000-square-kilometer area in the Changbai Mountains of Jilin province in the northeast. Here the Songhua, Yalu and Tumen rivers have their origin. It...
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ONE of China's important nature preserves is an 8,000-square-kilometer area in the Changbai Mountains of Jilin province in the northeast. Here the Songhua, Yalu and Tumen rivers have their origin. It...