题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091110-49057.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091110-58748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-76733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-81824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-52023.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-57445.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091110-49057.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091110-58748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-76733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-81824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-52023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091111-57445.png)
核心考点
举一反三
(1)方程
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091056-63402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091056-21930.png)
(2)函数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091056-94476.png)
(3)函数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091056-66322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091057-35809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091057-41017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091057-89025.png)
(4)一条曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091057-19545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091058-55968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091058-78759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091058-78759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091058-57584.png)
①“
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091050-51229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091050-12112.png)
②“若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091051-28824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091051-20672.png)
③在
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091051-90632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091051-56154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091052-68682.png)
④“函数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091052-32478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091052-46633.png)
其中正确的命题个数是( )
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091041-72120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091041-74724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091041-72120.png)
①;到两个定点
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091030-33851.png)
②命题“若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091031-40871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091031-25202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091031-84902.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091032-23757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091032-69008.png)
④设集合M =" {x" | 0< x ≤3},N =" {x" | 0< x ≤2},则“a∈M”是“a∈N”的充分而不必要条件则上述命题中真命题为 (填上序号)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091022-31737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091023-56111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091023-13496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091023-25507.png)
命题
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091023-25681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091024-67335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091024-80988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091024-38050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091024-43903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102091025-81467.png)
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