— What do people wear when they go to the theatre?

— Well, it isn't very ____. People can wear anything they like.[ ]

A. normal

B. certain

C. modern

D. simple

某电厂220kV双母线单分段接线，二回发变组接母线及六回出线，每段母线装一组PT和避雷器，若升压站运行方式为分段和母联断路器闭合，线路均匀接在三段母线上。

当一段母线故障，同时分段或母联断路器其中之一拒动，试分析停电回路可能有（）。

A.1/2

B.1/3

C.2/3

D.全停