题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120258-51476.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120258-75921.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
核心考点
举一反三
A.无零点 | B.有两个零点 |
C.至少有两个零点 | D.无零点或至少有两个零点 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120238-36190.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120238-56375.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120238-56375.gif)
①函数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120229-95997.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120229-28968.gif)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120230-26193.gif)
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120230-11508.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120230-41821.gif)
④方程
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120230-76094.gif)
(把所有正确结论的序号都填上).
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120217-77971.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120217-24657.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120218-62433.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120218-73590.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120218-80713.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120218-49993.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120219-30609.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120219-24442.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120219-71700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-64648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-78610.gif)
①若a∥
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-64648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-64648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-64648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-64648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102120208-16060.gif)
是:( )
A.④ | B.③ | C.①③ | D.②④ |
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