分接开关发生拒动、误动、电压表和电流表变化异常、电动机构或传动机构故障、分接位置指示不一致,应()分接开关。
A、可以手动操作
B、禁止操作
C、停用主变压器
参考答案:B
---What’s made Tommy so upset?
--- ______, I believe.It shocked him so much.
A.He lost the game
B.Lost the game
C.Losing the game
D.Because of losing the game
若复数z满足对应关系f(1-z) =2z-i,则i·f(1-i)=[ ]
A.-1
B.1
C.-1+i
D.0