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已知全集I=N,集合A={1,2,3,4,5,6}, B={2,3,5},则=_________。
已知全集I={x|x≤10,x∈N},A={1,3,5},B={2,3,7,9},那么集合{4,6,8,10}是
A.A∪B
B.A∩B
C.∪
D.∩
已知全集I={x|x是小于9的正整数},集合M={1,2,3},集合N={3,4,5,6},则(IM)∩N等于
{3}
{7,8}
{4,5,6}
{4,5,6,7,8}