Thursday, September 15, 2022
问题:安全技术措施的建立和健全,是防止和消除工伤事故的必要手段。(考点...
Saturday, September 17, 2022
Thursday, March 2, 2023
Saturday, September 17, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:限制城市轨道交通通过能力的通常是()和列车折返设备。...
Saturday, September 17, 2022
问题:一号线地铁列车当有火灾报警时,排除火警后,必须使用()来消除火警...
Saturday, September 17, 2022
问题:行车值班员需进行一分钟人工解锁的操作时,转动总人工解锁钥匙,总人...
Saturday, September 17, 2022
Thursday, September 15, 2022
问题:活塞式压缩空压机采用多级压缩、中间冷却可以提高功耗。...
Saturday, September 17, 2022
Tuesday, December 5, 2023
Saturday, September 17, 2022
问题:井点降水的土层为砂性土,降水深度为25m,这种情况下适合采用()...
Saturday, September 17, 2022
问题:从下列选项中选出,哪一种情况不能办理学生记名优惠储值票()A、18岁B、中专生C、初中生D、小学生...
Monday, January 22, 2024
Thursday, September 15, 2022
Thursday, September 15, 2022
Saturday, September 17, 2022
Thursday, September 15, 2022
问题:交流电源中心的作用是将电车的()后,为车辆交流负载供电。A、线网电源变换为24VB、动力直流电源变换为三相交流电源C、线网电源变换为交流电源D、动力直流电源变换为24V...
Thursday, January 4, 2024