题目内容

The company had a_________ of $3.8 million.

A. turnup
B. turndown
C. turnover
D. turnon

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The old system was fairly complicated _________ the new system is really very simple.

A. whereby
B. whereon
C. wherein
D. whereas

They expect the antibiotic products to __________ Southeast Asia and Africa.

A. be exported by
B. be exported to
C. be exported in
D. be exported at

He remains ____________ about the future.

A. optimism
B. optimistic
C. optimist
D. optimise

Ancient ________ methods still survive in our country.

A. farming
B. farmer
C. farms
D. farm

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