集团大客户故障处理总原则是()
A.一站受理、全程配合
B.分工协作、差异服务
C.闭环管理、统一回复
D.先本端,再对端
参考答案:A, B, C
They voted for Mr Wilson as chairman of the union, for his talent and ________ had won the respect
of his workmates. [ ]
A. fortune
B. quantity
C. quality
D. reaction
下列关于负序网络说法正确的是()。
A.负序网络是一个有源网络
B.负序网络包括空载线路和变压器
C.所有电源的负序电势为零
D.负序电流能流通的元件与正序的不同