当工作人员将外部电源电缆连接到飞机外部电源插座之前,必须确认电缆未被施加电压,其作用是:
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相关题目
I have a confession to make. I ______ you the truth.
Sophie has always thought the _______ of her uncle and so she is looking forward enormously to his visit.
There are far too many people sleeping _______ on the streets of London and other big British cities.
Local residents _______ objected to the plans to build a supermarket where there is currently a beautiful park.
It was Italian that she ______, wasn't it?
I feel sorry to inform you that your application ______ unsuccessful on this occasion.
I'll do my very best to ______ there on time.
I won't be going to Rothesay with you tomorrow ______ I feel a lot better.
If you happen to see Morag, would you ask her ______ my postcard.
I was ______ a housewarming party, next week. What do you think?
