【题文】(12分)已知全集
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151822-71333.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151823-39739.gif)
},
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151823-33624.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151823-53953.gif)
},
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151823-33003.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151824-63085.gif)
} 求
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151824-76574.gif)
、
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151824-76143.gif)
、
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151824-47525.gif)
【题文】(12分)已知全集
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151755-30838.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151755-97476.gif)
},
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151755-44623.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151756-53494.gif)
},
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151756-49603.gif)
={
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151756-20033.gif)
} 求
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151757-52163.gif)
、
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151757-39579.gif)
、
![](http://img.shitiku.com.cn/uploads/allimg/20200323/20200323151757-83551.gif)
【题文】
若U="{1,2,3,4},M={1,2}," N="{2,3}," 则C
U(M∪N)= ( )
A.{1,2,3} | B.{4} | C.{1,3,4} | D.{2} |
【题文】
若U="{1,2,3,4},M={1,2}," N="{2,3}," 则C
U(M∪N)= ( )
A.{1,2,3} | B.{4} | C.{1,3,4} | D.{2} |
【题文】附加题(本题10分,选做,分数计入总分,如总分超过100分仍为100分)
已知集合A={x