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【单选题】
如果价格下降100%能使买者总支出增加1%,则这种商品的需求量对价格( )。A.
富有弹性
B.
具有单元弹性
C.
缺乏弹性
D.
其弹性不能确定
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【单选题】Mrs. Smith locked both the front and the back doors before she went to bed ______ that someone might steal into the house at night.
A.
so
B.
for fear
C.
unless
D.
on condition
【简答题】番茄粉
【单选题】The customer didn't choose _____ of the coats and went away without looking at a third one. [ ]
A.
both
B.
all
C.
any
D.
either
【简答题】A．They have stored some money for their daughter's schooling. B．They both went abroad without telling their daughter. C．They pr their daughter undertaking any part-time job. D．They both lost thei...
【单选题】______ went to see the film yesterday.
A.
Every of them
B.
Both they
C.
Nobody of them
D.
Not all of them
【单选题】Lily Sam likes popular songs, so they went to Zhou Jielun’s concert together last night.
A.
Both, and
B.
Either, or
C.
Not only, but also
D.
Neither, nor
【单选题】The man didn’t choose __ of the suits and went away without looking at ___ third one.
A.
both; a
B.
any; the
C.
neither; the
D.
either; a
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