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【判断题】
局域网常见的拓扑结构有、总线型和环型结构。()A.
正确
B.
错误
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【单选题】They became friends again that day. Until then.they_ to each other for nearly two years
A.
didn't speak
B.
hadn't spoken
C.
haven't spoken
D.
haven't been spoken)
【单选题】She never dreamed of _____ a chance for her to meet her old friends again. [ ]
A.
there being
B.
there to be
C.
there was
D.
being
【简答题】41) Before ____ the house, you should get a surveyor____ over it. A) buying...looking B)having bought...to look C) buying...to have looked D) buying...to look 42)In some countries people favo...
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