道口轨道电路与ZPW-2000、UM系列轨道电路叠加时,闭路式道口控制器安装地点应距 发布时间:2017-07-06 17:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 道口轨道电路与ZPW-2000、UM系列轨道电路叠加时,闭路式道口控制器安装地点应距调谐区不小于()。A、25mB、50mC、75mD、100m
题型:单项选择题 Administrative closure should not be delayed until project completion becauseA) useful information may be lostB) the project manager may be reassignedC) project team members may be reassigned by that timeD) sellers are anxious for payments 查看答案