IN West China, there is an expanse of oases west of the Huanghe (Yellow) River. The oases extend more than 1,000 kilometers and are collectively known as the Hexi (West of the River) Corridor....
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IN West China, there is an expanse of oases west of the Huanghe (Yellow) River. The oases extend more than 1,000 kilometers and are collectively known as the Hexi (West of the River) Corridor....