【題目】The energy program ______ at reducing our dependence on fossil fuels has made considerable breakthroughs in the past decades.

A.aimB.aimedC.being aimingD.to aim

【答案】B

【解析】

考查過去分詞作后置定語。句意：旨在減少我們對化石燃料依賴的能源計劃在過去幾十年取得了重大突破。固定搭配：be aimed at旨在，為了。此處是過去分詞作后置定語，故選B。

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