题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-70481.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-15118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-46171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-68195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042151-96675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042151-62100.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-84586.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-22940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-68195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042151-96675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-50898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-66719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042153-67836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-66719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042153-31278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042152-66719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042153-94546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042153-12940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-15118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042150-46171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042153-12733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042154-88759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042154-99718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042154-29301.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042154-54458.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042145-37173.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042145-39638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042145-94380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042145-92952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042146-62077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042146-94079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042146-74474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042141-88007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042141-34074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042141-99368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042134-49795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042135-46600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042135-14287.png)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042135-51714.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042135-51349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042136-28976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042121-35265.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-47506.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-90707.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-63686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-63686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-47506.png)
的“好区间”.
(1)设
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042123-81135.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042123-17904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042123-78186.png)
说明理由;
(2)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042123-92513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042122-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042124-20066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042124-89817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042112-86884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042112-82742.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042112-50790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042112-37836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042112-75330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042113-27681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042113-68786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042113-45249.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042113-75116.png)
(Ⅰ)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042113-36103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042114-21393.png)
(Ⅱ)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042114-12473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818042114-37492.png)
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