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【判断题】
相邻两条高程不同的等高线之间的高差，称为等高线平距。（ ）A.
正确
B.
错误
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【简答题】The biggest obstacle to energy transition is that the present energy system is too expensive to replace． 查看材料
【单选题】Even if they are on sale， these refrigerators are equal in price to， if not more expensive than， __________at the other store.
A.
anyone
B.
the others
C.
that
D.
the ones
【单选题】The performance of this reasonably priced digital camera is _____ in quality to that of more expensive ones.
A.
beneficial
B.
fundamental
C.
comparable
D.
competitive
【单选题】Health Care in the US Health care in the US is well-known but very expensive. Paying the doctor's bill after a major illness or accident can cost hundreds of thousands of dollars. In the US, a person'...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】In the future,cars won’t be ______,and it’ll be _____ to travel everywhere by plane. A,cheap, expensive B. expensive ,expensive C. cheap , cheap D. expensive,cheap
【单选题】Why did the French consortium gave up to build the canal?( )
A.
Because it was too expensive.
B.
Because many people died.
C.
Because the topography in Panama was difficult to build a canal.
D.
Because the American government decided to buld it by themselves.
【单选题】It is reported that this medicine is _______ against lung cancer.
A.
economic
B.
easy
C.
expensive
D.
effective
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