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【题目】He is absorbed in his ____________studies, neglecting sleep and meals.

A.keenB.physicalC.scientificD.sincere

【答案】C

【解析】

考查形容词词义辨析。句意:他专注于他的科学研究,废寝忘食。A. keen敏锐的;B. physical身体的,物理的;C. scientific科学的;D. sincere真诚的。根据studies可知,此处用“科学研究”符合句意,故选C项。

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