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【单选题】
Cisco IOS是( )?A.
思科网络设备
B.
设备配置命令
C.
思科网络设备操作系统
D.
思科标准体系
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皮皮学刷刷变学霸
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【简答题】螺旋桨的推力与转速的_____成正比,它吸收的功率与转速的______成正比。
【单选题】Why did the lower-class white people in the United States treat Chinese immigrants with hostility?
A.
The lower-class people are jealous of Chinese wealth.
B.
Chinese established Chinatowns.
C.
They think Chinese steal their jobs.
D.
They think Chinese come to their country illegally.
【单选题】When the Vessel is at the place of delivery and in every respect physically ready for delivery in accordance with this Agreement，the Sellers shall give the Buyers a written ______ for delivery.
A.
information of the of the vessel
B.
Notice of Readiness
C.
Declaration of the Condition of the Vessel
D.
Declaration of DWT or Net DWT
【单选题】Why, according to the passage, did ancient Chinese coins have a square hole in the center?
A.
Because it would be easier to put them together and carry them around.
B.
Because it would be lighter for people to carry them from place to place.
C.
Because people wanted to make it look nicer.
D.
Because people wanted to save the expensive metal they were made from.
【单选题】The date, hour and place for latest delivery of bids by the bidder, and of the bid opening, should be announced in the invitation () bid, and all bids should be opened at the stipulated time.
A.
of
B.
at
C.
in
D.
to
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