[单选题]题目38不正确获得1.00分中的0.00分未标记标记题目. His achievements______ rice production ______20 %-30%.
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2024-02-03 16:06:25
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[单选题]题目38不正确获得1.00分中的0.00分未标记标记题目. His achievements______ rice production ______20 %-30%.

a. have increased; by
b. have been increased; in
c. have been increased; of 解析:考查动词的语态和介词。句意:他的成就已经使水稻产量增长了20%-30%根据句意判断此处表主动;又increase… by意为“增长了……”。。
d. have increased; at
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