关于U1234567A2457B345的百科

• 已知*U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(∁UA)∪(∁UB...

• 问题详情：已知*U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(∁UA)∪(∁UB)等于()A．{1,6}                    B．{4,5}                     C．{2,3,4,5,7}            D．{1,2,3,6,7}【回答】D【分析】由题意首先求解补...
• 2019-04-0827551