题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-84480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-47546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-89710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-98025.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-77534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-16806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-25241.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:作出不等式组
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-89710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043331-13013.png)
直线
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043331-32700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043332-91422.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043332-47844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043332-50624.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043332-12960.png)
作直线
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043332-31000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-15687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-61032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-47546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-61032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-35048.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-61032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-47546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-15687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-77534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-67203.png)
当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-61032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-96849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-61032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043329-47546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043333-15687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043330-16806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043334-31977.png)
因此,
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043334-96358.png)
【考点定位】本题考查线性规划中线性目标函数的最值,属于中等题.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043322-92462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043322-42334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043323-42085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043323-73601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043323-61288.png)
A.5 | B.4 | C.![]() | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043255-58052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043255-47480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043255-29857.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043246-72802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043246-57130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043246-15260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043247-77571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043247-17784.png)
其中的真命题是( )
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043242-56149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043235-37718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043236-14388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043236-44928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043236-33786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043236-33938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017043237-89335.png)
A.5 | B.29 | C.37 | D.49 |
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