【題目】Scientists are making great efforts to develop new drugs to avoid the situation ____ the drug has more or less some side effect which will effect other organs.

A.whenB.thatC.whichD.where

【答案】D

【解析】

考查定語從句。句意:科學(xué)家們正在努力開發(fā)新藥,以避免藥物或多或少會對其他器官產(chǎn)生副作用的情況。此處為定語從句,先行詞為抽象名詞situation,表示“到了某種情況”,從句中缺少地點(diǎn)狀語,故D項正確。

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