In ____ accident _____ knowledge of first aid can make _____ real difference.

A. an; a; a B. the; a; the C. an; the; 不填 D. a; a; 不填

 

A

【解析】

試題分析：句意：在一個(gè)事故中，急救的知識(shí)真的有很大差別。第一個(gè)空，表示泛指，且“accident”首字母發(fā)音是元音，故用不定冠詞an ；第二個(gè)空表示泛指，且“knowledge”首字母發(fā)音是輔音，故用不定冠詞a ；第三個(gè)空，make a difference 是固定用法，意思是有差別，有關(guān)系。選A。

考點(diǎn)：考查冠詞的用法

 

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