题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023259-33228.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:方法一:由
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023300-67142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023300-32228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023300-94368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023300-77118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023300-39667.png)
方法二:因
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023301-76071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023301-41594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023301-36428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023301-67879.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023301-88602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023302-33921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023302-96923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819023259-49360.png)
核心考点
试题【( )A.>0B.>-3C.<1D.】;主要考察你对一次函数的图象和性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000724-74564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000725-21303.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000726-12205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000726-96014.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000726-80918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-85238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-44604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000726-80918.png)
①集合
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-36525.png)
②若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-71648.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-18546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-35696.png)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-75534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-18546.png)
④若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000727-30639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000726-80918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000728-27709.png)
其中正确的结论是 .(填上你认为所有正确的结论序号).
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-10290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-53758.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-67881.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-60870.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-50848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000732-67881.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000734-46203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000734-49228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000735-97398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000737-77075.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000737-32389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000737-86932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000737-46098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000737-52063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815000738-47940.png)
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