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举一反三
【单选题】The arrival of computers everywhere in the workplace would，we were assured，soon make paper a thing of the past（）
A.
电脑铺天盖地出现在工作场所各处，我们深信有纸办公即将成为过去的事情。
B.
电脑出现在工作场所各处，我们确信，有纸办公很快会成为过去的事情。
C.
电脑铺天盖地出现在工作场所的各个角落，使我们深信有纸办公即将成为历史。
D.
我们确信电脑到达了办公场所各个地方，很快会使纸的生产成为历史。
【单选题】()trouble ahead.
A.
There seem to be
B.
There seems to be
C.
There seem to have
D.
There seems to have
【单选题】设f(x)=φ(x)(1+|sinx|)，φ(x)可导，则φ(0)=0是f(x)在点x=0处可导的（）
A.
充分必要条件．
B.
必要条件，但非充分条件．
C.
充分条件，但非必要条件．
D.
既非必要条件，又非充分条件．
【单选题】Many doctors are still general practitioners, but the tendency is toward specialization in medicine.
A.
rumor
B.
trend
C.
prejudice
D.
security
【单选题】The river widens considerably as it begins to turn west.
A.
twists
B.
stretches
C.
broadens
D.
bends
【单选题】We ascribe his great success to his intelligence and persistence.
A.
distribute
B.
attribute
C.
contribute
D.
subject