His friends were ___________and encouraged him to publish his ideas, but Copernicus was cautious.

A. technical B. official

C. educated D. enthusiastic

D

【解析】試題分析:考查形容詞辨析。A技術的;B官方的,法定的,公職的,正式的;C有教育的,受過良好訓練的;D熱心的,熱情的。句意:朋友們熱情鼓勵他發(fā)表自己的觀點,但哥白尼很謹慎。故選D。

考點:考查形容詞辨析

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