题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182722-13408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182722-80471.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182722-47474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182722-90130.png)
A.x-y-2=0 | B.x-y=0 | C.3x+y-2=0 | D.3x-y-2="0" |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182723-99395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182723-93890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182723-56503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182723-84279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182724-26369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182724-39393.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-49409.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-23739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-13918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-19587.png)
A.R>Q>P | B.R>P>Q | C.P>R>Q | D.Q>P>R |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182710-59595.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182710-61996.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-41394.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-43704.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-18952.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-84100.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182702-57865.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182702-17736.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-21599.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-62945.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-69169.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-33865.jpg)
A.k<l | B.![]() | C.k >-1 | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-65334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-59482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-11613.png)
A.(2, 3 ) | B.(3, 4 ) | C.(0, 1 ) | D.(1, 2 ) |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182650-78275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182650-39752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-18406.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-13024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-28505.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-53063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-79259.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-48935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-66427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-82296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-50213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-94226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-71353.png)
(ⅰ)求当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-96121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-48935.png)
(ⅱ)求方程
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-37246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-96739.png)
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