题目内容

______new products have been successfully trial-produced.

A great deal
B. A large amount of
C. A plenty of
D. A large number of

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The rain was heavy and______the house was damaged.

A. consequently .
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He has made a discovery, ______of great importance to the progress of science and technology.

A. I think which is
B. which I think is
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D. of which I think it is

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A. would not become
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A. word-for-word
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