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【单选题】
无功功率的单位A.
B.
伏特
C.
瓦特
D.
乏尔
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举一反三
【单选题】_____ being prepared for the flight, the crew also ensure that all passengers know safety matters.
A.
Beside
B.
Not only
C.
As well as
D.
In addition
【单选题】The writer of this passage refers to the history of money in order to ______.
A.
show that silver and gold are previous metals
B.
show that one should convert paper money to gold
C.
explain the nature of money
D.
show that anything can serve as money in modern times
【多选题】For the members of staff aboard a commercial aircraft, employed to ensure the safety and comfort of their passengers, we usually call them:
A.
cabin crew
B.
waitress
C.
crew member
D.
flight attendents
【单选题】我国信息安全面临的威胁有( ) 1主要技术依赖进口,信息产业受制于人 2信息安全的防护能力较弱 3信息安全管理机构尚不完善 4信息安全意识亟待提高 5信息传播速度急剧加快
A.
①②③④⑤
B.
①②③④
C.
①②③⑤
D.
②③④⑤
【单选题】The reservation agent a window seat for him on the flight.
A.
book
B.
reserving
C.
assigned
D.
safety
【单选题】The writer of this passage refers to the history of money in order to ______________.
A.
show that silver and gold are previous metals
B.
show that one should convert paper money to gold
C.
explain the nature of money
D.
show that anything can serve as money in modem times
【简答题】信息安全面临的主要威胁有哪些?
【简答题】信息安全面临的主要威胁有哪些?
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