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12.It will make           difference if we declare         war on food waste.(  )
A./; aB.a; theC.a;/D.the; a

分析 如果我们向食品浪费宣战那么结果将大不同.

解答 答案:C.
make a difference为固定搭配,表示"有意义,起作用";declare war on sth意为"向…宣战",也是一种固定表达,所以使用零冠词;故选C.

点评 对于冠词一类的题目,只要认真分析文中所指的名词为泛指还是特指,并结合句中短语是否为固定搭配,则可以轻松地选出答案.

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