若使用消弧绳,则其断、接的10kV空载线路的长度应小于(),且作业人员与断开点应保持()以上的距离。 ["50km;4m","30km;4m","50km;3m","30km;3m"]
禁止内部人员及第三方人员携带的()接入生产网络。 ["手机","电缆","个人终端","软件"]
下列概念中,与预制桩施工相关的是()。 ["送桩","护筒","排渣","清孔"]
Dreamweaver按底边距对齐组合层的快捷操作是() ["Ctrl+左箭头","Ctrl+右箭头","Ctrl+上箭头","Ctrl+下箭头"]
未及时开始短信提醒会下发几次() ["1","2","3","4"]
理论教育法