【题文】设集合
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322154002-92376.png)
,则
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322154002-90932.png)
=
.
【题文】设U={x∈Z|0<x≤10},A={1,2,4,5,9},B={4,6,7,8,10},求A∩B,A∪B,
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322153930-67518.png)
。
【题文】已知A={x|2a≤x≤a+3},B={x|x<-1或x>5},若A∩B=
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322153916-70271.png)
,求a的取值范围.
【题文】设集合A={x|1≤x≤2},B={x|x≥a},若A?B,则a的范围是( )
【题文】设全集U={1,2,3,4,5},A={1,3,5},B={2,4,5},则(
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322153841-37448.png)
)∩(
![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322153841-55850.png)
)等于( ).
A.![](http://img.shitiku.com.cn/uploads/allimg/20200322/20200322153841-59719.png) | B.{4} | C.{1,5} | D.{2,5} |