1.\x05已知全集U,集合A={1,3,5,7,9},CUA=﹛2,4,6,8,9﹜,则集合B=__.__________2.\x05集合﹛a,b,d,e﹜的非空子集共有____________________个.3.\x05U=Z,A=﹛x|x﹦2k,k∈z﹜,B=﹛x|x﹦2k+1,k∈z﹜,则CUA=_____________
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