The production of these biofuels, such as ethanol made from maize, has risen sharply recently,　（） the replacement of food crops with fuel crops has been heavily criticized._精华吧

The production of these biofuels, such as ethanol made from maize, has risen sharply recently,　（） the replacement of food crops with fuel crops has been heavily criticized.

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The production of these biofuels, such as ethanol made from maize, has risen sharply recently,　（） the replacement of food crops with fuel crops has been heavily criticized.

A.but

B.and

C.when

D.or

正确答案：but

Tag：科技英语写作时间：2022-01-29 20:54:31

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