Recently people have made great progress in using ____ power of nature to produce____ electricity.
A．a(chǎn); theB．/; /C．the; /D．a(chǎn); an
C

試題分析：考查冠詞：句意：最近人們?cè)谑褂锰烊荒茉窗l(fā)電方面取得很大進(jìn)步。第一空填the，the power of nature特指自然的力量，第二空不填，electricity是抽象名詞，不加冠詞，選C。
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