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【多选题】
断路器的红、绿指示灯的作用是()。
A.
红灯用来监视断路器合闸回路是否完好,同时表示断路器处于合闸位置
B.
断路器装有位置继电器时,红、绿灯不监视跳、合闸回路,只表示跳、合闸位置
C.
绿灯用来监视断路器跳闸回路是否完好,同时表示断路器处于断开位置
D.
带有闪光装置的红、绿灯,还能表示断路器与合、跳闸操作手柄的位置是否对应,如果位置不对应时,发生闪光
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参考答案:
举一反三
【单选题】He asked, "Where are you to get off, John?" He asked John where _____________ get off.
A.
was he to
B.
he was to
C.
does he to
D.
would he to
【判断题】牙是人体最坚硬的器官
A.
正确
B.
错误
【单选题】—Where is the bookshop? —Get off the boat and go the station,you can see it. [     ]
A.
on
B.
down
C.
past
D.
pass
【简答题】Traffic TV Avoid the jams — see where tailbacks are before you set off and while on the move. Traffic TV is free to use on your personal computer and only £4 per month (se e below for other network ch...
【判断题】产品就是实体产品,不包括体验、组织、人、地点和构思。
A.
正确
B.
错误
【单选题】听力原文:W: Where do you want me to drop you off? M: Right here is fine. Q: What will the man probably do? (15)
A.
Get out of the car.
B.
Pay the parking fine.
C.
Take his coat off.
D.
Make a right turn.
【判断题】人体最坚硬的器官是牙。
A.
正确
B.
错误
【判断题】人体最坚硬的器官是牙。
A.
正确
B.
错误
【单选题】听力原文:W: Do you have an address where I can write to you? M: No, I'll be off camping in the mountains most of the time. But if you write to me at my uncle's house, he'll hold my mail until I get there....
A.
At the post office.
B.
At his home address.
C.
At his mountain cabin.
D.
At his uncle's address.
【判断题】牙齿是人体最坚硬的器官。
A.
正确
B.
错误
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