题目内容
设全集
设全集U={x|x为小于20的质数},A∩UB={5,11},(UA)∩B={7,13},(UA)∩(UB)={17,19},则A=________,B=________.
设全集U=A∪B={x∈N*|lgx<1},若A∩(∁UB)={m|m=2n+1,n=0,1,2,3,4},则集合B=________.
.(2009·天津文,13)设全集U=A∪B={x∈N*|lg x<1},若A∩(∁UB)={m|m=2n+1,n=0,1,2,3,4},则集合B=________;