当家里漏电保护器突然跳闸后,应该如何做()?
A.立即合闸
B.查明原因、排除故障
C.更换漏电保护器
D.等待来电
参考答案:B
It’s time that I my hair cut. It’s the fifth time that I to the barber’s shop.
A.had; have gone
B.have; have gone
C.have; went
D.had; go