题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165722-70443.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
试题分析:依题意,得
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165723-42099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165723-74590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165723-75254.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165723-43392.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165719-34017.png)
A.两条直线 | B.两条射线 |
C.两条线段 | D.一条射线和一条线段 |
①若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-18956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-98981.png)
②若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-18956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-22618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-15214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-68864.png)
③已知
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-84450.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-45758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165709-12197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
④设函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165710-79873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165710-32963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165710-81593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165710-63159.png)
⑤若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-18956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165711-97745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165708-15201.png)
其中正确的命题序号是 .(写出所有正确命题的序号)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165705-19368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165705-96594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165705-75557.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165700-18821.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165700-82409.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817165656-31410.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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