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设*U={1,2,3,4,5},A={2,4},B={3,4,5},C={3,4},则(AB)= ...
问题详情:设*U={1,2,3,4,5},A={2,4},B={3,4,5},C={3,4},则(AB)= .【回答】知识点:*与函数的概念题型:填空题...