220千伏及以上电压等级的线路送电操作时,可以带空载变压器充电。
参考答案:错
—Thanks for your help. What shall I do for you________?
—You would have done the same if you were me. [ ]
A. in order
B. in return
C. in vain
D. in advance
请简述PCU的功能。