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


Tag:中外铁路文化之旅 时间:2022-01-14 21:32:17