摘要:1.设全集U={1.2.3.4.5}.集合A={1.2}.B={2.3}.则 A.{4.5} B.{2.3} C.{1} D.{2}
网址:http://m.1010jiajiao.com/timu_id_178745[举报]
设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(C∪Q)=( )
(A) {1,2} (B) (3,4,5} (C) {1,2,6,7} (D) {1,2,3,4,5}
查看习题详情和答案>>