U12345A24B345C34的知识精选

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...
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