半自动闭塞区间车站发出须由区间,返回的列车时须报请列车调度员发布命令改用()行车。A 发布时间:2020-01-13 09:44 │ 来源:www.tikuol.com 题型:单项选择题 问题: 半自动闭塞区间车站发出须由区间,返回的列车时须报请列车调度员发布命令改用()行车。A.书面联络法B.电话闭塞法C.时间间隔法D.区间间隔法
题型:单项选择题 —Sorry, Ann. I’m afraid that I can’t go to the magic show by David Copper Field with you.— _____ Who knows when he will be back here again?A.It doesn’t matter.B.Do as you like.C.What a shame!D.Take it easy. 查看答案