RCS-901A采用了IO和I2A比相的选相元件,当____相间接地故障时,IO和I2A同相

RCS-901A采用了IO和I2A比相的选相元件,当____相间接地故障时,IO和I2A同相

选项1:AB

选项2:BC

选项3:CA

选项4:

选项5:

答案:2