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

解析副词形异义异辨析。radically意为“从根本上，在基本方面，彻底地，本质上”，如：Attitudes towards education should change radically．对于教育的态度应该彻底改变。

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专业英语四级

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