"xP(x)®"yQ(y)逻辑等值于( )。选项: A:Ø"xP(x)Ú"yQ(y) B:$xØP(x)Ú"yQ(y) C:$x"y(P(x)®Q(y)) D:"xP(x)Ú"yQ(y) 逻辑 等值 发布时间:2024-04-01 21:31:13