The chairman of the company said that new techniques had______improved their production efficiency.

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问题 The chairman of the company said that new techniques had______improved their production efficiency.

选项 A、violently
B、severely
C、extremely
D、radically

答案D

解析副词辨析题。radically表示“根本地，彻底地”；violently表示“强烈地，激烈地，猛烈地”；severely表示“严厉地，严重地，苛刻地”；extremely表示“极端，非常，极其”。根据句意应选[D]radically。

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专业英语四级

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