Thursday, September 22, 2022
多选题《安全生产法》规定,任何()都应当支持和配合事故抢救并提供一切便利条件。A单位B个人C社区D组织...
Wednesday, May 3, 2023
Thursday, September 22, 2022
禁止在铁道上或车底下(),也不准在车辆下面或两节车的中间()。...
Monday, September 19, 2022
Thursday, September 15, 2022
一台八极的三相异步电动机的旋转磁场的旋转是(f=50Hz)()。...
Thursday, September 22, 2022
Sunday, September 18, 2022
安装漏电保护器时,漏电保护器后面的工作零线()重复接地。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022
城区低压配电架空线路的档距为40~50m,城区10kV配电架空线路的档距为60~80m。...
Thursday, September 22, 2022
当1KV以下的架空线路经过居民区时,其导线与地面的最小距离不应小于()m。...
Thursday, September 22, 2022
Wednesday, September 21, 2022
Tuesday, September 20, 2022
万用表电压量程2.5V是当指针指在()位置时电压值为2.5V。...
Saturday, September 17, 2022
Wednesday, September 21, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022