题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085930-62050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085930-50007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
A.0个或1个 | B.1个或2个 | C.2个 | D.3个 |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-29753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-85138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-72816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-30891.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085932-87188.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085932-40084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085932-61090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085932-81724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085932-14937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085933-49997.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085930-50007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085933-68371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085933-25203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085931-11621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085933-20655.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085919-21216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085919-29345.png)
(1)讨论
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085919-21216.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085920-23561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085920-73052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085920-24360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085920-68494.png)
(3)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085920-69828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085902-36423.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085902-66860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085902-40152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085902-82270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085902-71719.png)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085903-61026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085903-38067.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085903-49484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085903-61271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085849-34730.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085849-16237.png)
(1)讨论
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085849-92531.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085849-62540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085849-92531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085850-33706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085836-99189.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085830-90245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085831-45946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018085831-84836.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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