【題目】The result of this study confirmed the ________ assumption made by the scientist months ago.

A. previous B. precious C. potential D. practical

【答案】A

【解析】

試題分析：句意：這個研究結(jié)構(gòu)證實了科學(xué)家數(shù)月前的猜測。A.previous先前的；B. precious珍貴的；C. potential有潛力的；D. practical實際的。A項符合語境。

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