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Kunlun Mountain Tunnel is the world’s LONGEST plateau tunnel on permafrost, with a total length of 1,686 meters.

Kunlun Mountain Tunnel is the world’s LONGEST plateau tunnel on permafrost, with a total length of 1,686 meters.
A.正确
B.错误
正确答案：正确

标签：中外铁路文化之旅

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