A0123B124的知识精选

若*A={0,1,2,3},B={1,2,4},则*A∪B=A.{0,1,2,3,4}B.{1,2,3,4...
问题详情:若*A={0,1,2,3},B={1,2,4},则*A∪B=A.{0,1,2,3,4}B.{1,2,3,4}  C.{1,2}  D.{0}【回答】A知识点:*与函数的概念题型:选择题...
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