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13.Everything comes with_______ price;there is no such thing as free lunch in the world.(  )
A.aB.theC.anD./

分析 所有的事情都有代价,这世上并没有免费的午餐.

解答 正确答案:A.根据句意所有的事情都有代价,这世上并没有免费的午餐,其中price是代价的意思,是泛指,且price首字母发辅音音素/p/,则应填写不定冠词a,故选择A.

点评 本题考查不定冠词a,掌握其基本用法,根据题干作出选择.

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