题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142030-66860.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142030-21566.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142031-98912.gif)
答案
解析
点评:本题考查二分法,属于容易题
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142028-59631.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142025-16981.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142025-56352.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142025-46925.gif)
A.0个零点 | B.1个零点 | C.2个零点 | D.3个零点 |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142022-72900.gif)
A.0 | B.2lg2 | C.3lg2 | D.1 |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819142020-44019.gif)
A.0或2个 | B.0或2或4个 | C.0或2或3或4个 | D.0或1或2或3或4个 |
A.![]() | B.![]() | C.![]() | D.![]() |
A.0个零点 | B.1个零点 | C.2个零点 | D.3个零点 |
A.0 | B.2lg2 | C.3lg2 | D.1 |
A.0或2个 | B.0或2或4个 | C.0或2或3或4个 | D.0或1或2或3或4个 |