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【判断题】
中国鸦片战争失败的原因是道德文化太先进，落后。()A.
正确
B.
错误
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举一反三
【简答题】Engineers had a better choice of material, ______________ (当新发明被投入使用以后).
【单选题】If a better material______, the strength of the part would have been increased.
A.
had been used
B.
had been using
C.
being used
D.
using
【单选题】A ) It looks unusual. B) It transforms. C) It uses better material. D) It is a new product.
A.
It looks unusual.
B.
It transforms.
C.
It uses better material.
D.
It is a new product.
【单选题】Mr. H never gets beyond corporal and material ________.
A.
verities
B.
value
C.
profit
D.
benefit
【单选题】If a better material______, the cost of the product would have been decreased.
A.
had been used
B.
had been using
C.
being used
D.
using
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