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Only _____ people can have a good understanding of the lecture given by the scientist.

A.educated B.devoted C.concerned D.relaxed

A

解析试题分析:句意:只有受过教育的人才能够很好的理解这位科学家的演讲。Educated受过教育的;devoted献身的;concerned担心的;relaxed轻松的,选A。
考点:考查词义辨析

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