题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-59893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-75084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-59893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-70958.jpg)
A.![]() ![]() ![]() | B.![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() ![]() ![]() |
答案
解析
试题分析:由题意可知,函数的解析式为
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234116-40472.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234116-89529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234116-99828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-99160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-94614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-11705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-49095.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234118-49656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234118-41775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-99160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234118-83619.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234118-76174.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234119-29125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234119-34947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234117-99160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234119-36856.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234119-96094.png)
综上所述,
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-59893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234115-50204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234114-67154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234115-68924.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234110-82860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234110-32293.jpg)
A.6 | B.10 | C.14 | D.30 |
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234054-45098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234054-70944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234055-53882.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234039-63851.png)
A.6 | B.8 | C.10 | D.15 |
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234032-95218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191030/20191030234010-10338.jpg)
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