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