题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015727-36280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-39433.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-78452.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-67418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-91174.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-99575.gif)
(1)设
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-36006.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-99922.gif)
(2)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-54431.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015727-36280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-99575.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-74391.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-99575.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-74391.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-72364.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-41848.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-39433.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-78452.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-67418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-15564.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-68713.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015727-36280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-78452.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-67418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-66845.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-49268.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-41562.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-50302.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-91174.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015728-99575.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-86050.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-87292.gif)
(1)令
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-36006.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015732-51165.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015732-70548.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-99922.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015732-90702.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-99922.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015732-59945.gif)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015731-86050.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-72364.gif)
(2)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015729-54431.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015727-36280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015733-49915.gif)
可能满足条件的整点为
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015733-14027.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015733-10399.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015733-47273.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015730-41848.gif)
核心考点
试题【若关于的实系数方程有两个根,一个根在区间内,另一根在区间内,记点对应的区域为.(1)设,求的取值范围;(2)过点的一束光线,射到轴被反射后经过区域,求反射光线所】;主要考察你对简单的线性规划等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015721-74513.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015722-98143.gif)
工艺要求 | 立品甲 | 产品乙 | 生产能力/ (台/天) |
制白坯时间/天 | 6 | 12 | 120 |
油漆时间/天 | 8 | 4 | 64 |
单位利润/元 | 20 | 24 | |
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-75229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-85255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-12578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-44867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015654-10300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-75229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-85255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-12578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-44867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015654-10300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-75229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-85255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-12578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-44867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015654-10300.gif)
如果此人每天摄入维生素
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-75229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-85255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-12578.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015653-44867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017015654-10300.gif)
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