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【单选题】
一根长 10cm 的弹簧,当所受拉力为 2N 时,弹簧伸长 2cm ,当所受拉力为 4N 时(在弹性限度内),弹簧的长度是( )A.
4cm
B.
8cm
C.
14cm
D.
24cm
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【简答题】A．They were made by the hackers and put on computers. B．They were not found by the experts. C．They were prepackaged and found on many computers. D．They were hard to find.
【单选题】If I _______ you , I _______ do that .
A.
was , would
B.
were ; wouldn’t
C.
am , won’t
D.
were , won’t
【单选题】The computers in the first generation were called ______________.
A.
transistor computers
B.
vacuum tube computers
C.
integrated circuit computers
【单选题】Everything from lights and ceiling fans to computers and radios were left on when they were not in use.
A.
Light, ceiling fans, computers and radios were all put away when they were not in use.
B.
Everything from lights and ceiling fans to computers and radios were not turned off when no one was using them.
【简答题】What did the manager mean by saying,'… Hockey and the International Hock-ey Federation are finished'?
【单选题】Everything from lights and ceiling fans to computers and radios were left on when they were not in use
A.
Lights, ceiling fans, computers and radios were all put away when they were not in use.
B.
Everything from lights and ceiling fans to computers and radios were not turned off when no one was using them.
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