题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141156-82906.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141156-53130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-91007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-72010.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-58517.png)
B.
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-45239.png)
C
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141158-39100.png)
D.
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141158-13928.png)
答案
解析
试题分析:令
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141158-72046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-91007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-72010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141158-91916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141157-72010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141158-32602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141159-32842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141159-51862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141159-61834.png)
点评:对于比较函数值大小问题常常利用导数研究函数的单调性求解,属基础题
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141145-22599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141145-12367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141145-79023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141145-81092.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141135-71291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141135-10149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141135-95437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141136-46081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141135-10149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141136-78393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141136-11329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141136-59536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-47532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-90994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-47532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141124-12511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-47532.png)
h
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-47532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141124-57460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141123-47532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141124-40010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141124-85782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141125-56517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141125-51507.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141116-16475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141117-85984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141117-20526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141117-54256.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141105-26167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141106-11701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141106-14707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141106-58923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141106-18737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017141106-58978.jpg)
A.2 | B.4 | C.5 | D.8 |
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