当超长列车尾部停在警冲标外方,邻线上未设调车信号机,又无隔开设备,相对方向需要进行调 发布时间:2017-07-25 17:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 当超长列车尾部停在警冲标外方,邻线上未设调车信号机,又无隔开设备,相对方向需要进行调车作业时,必须派人以()对列车进行防护。A、响墩B、防护牌C、停车手信号D、铁鞋
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题型:单项选择题 —_____________________?—The trees must three times a week.[ ]A. How long it is B. How much is it C. How long is it D. How much does it weigh 查看答案