(2008•湖南)已知U={2,3,4,5,6,7},M={3,4,5,7},N={2,4,5,6},则( )A.M∩N={4,6}B.M∪N=UC.(∁UN
题型:单选题难度:简单来源:不详
(2008•湖南)已知U={2,3,4,5,6,7},M={3,4,5,7},N={2,4,5,6},则( )A.M∩N={4,6} | B.M∪N=U | C.(∁UN)∪M=U | D.(∁UM)∩N=N |
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答案
解析:由题意M∩N={2,6},A错误;M∪N={2,3,4,5,6,7}=U, 故选B |
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