There is thing as a free lunch.A. not suchB. no such aC. one such aD. no such

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A. not such
B. no such a
C. one such a
(答案→)D. no such
解析：考查such的用法。句意：天下没有免费的午餐。There is no such thing as…是固定用法，意思是“没有像……类的事情。故选D。