题目
题型:填空题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164642-96410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164642-67504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164642-12877.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164642-81313.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164642-96410.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164643-71079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164643-14827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164643-54142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164643-11703.png)
其中存在“好区间”的函数是 .(填入所有满足条件函数的序号)
答案
解析
试题分析:①函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164643-89800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-51469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-64812.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-42633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-15452.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-86066.png)
在
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-23510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-23510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-42633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-21950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-88130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-80078.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-76635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-48365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-42633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-56826.png)
②对于函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-92882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-84375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-85368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-89438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-85368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164646-92882.png)
③对于函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-94498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-65180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164647-18195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-70978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-37219.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-65278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-67388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-94724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164649-68156.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164649-48702.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164649-65803.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164649-72983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-70978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-94724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164649-92845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164648-94724.png)
④函数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-67507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-62784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164644-51469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-14796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-18977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-27597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164651-47430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164651-24429.png)
得,
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164651-13664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-23510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164651-60940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164651-12559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164652-83742.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164652-37576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-23510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164652-50924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164645-23510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164652-37576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164650-67507.png)
核心考点
试题【对于函数,若存在区间,使得,则称区间为函数的一个“好区间”.给出下列4个函数:①;②;③;④.其中存在“好区间”的函数是 .(填入所有满足条件函数的序号】;主要考察你对函数定义域等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164632-67746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164632-11845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164632-95081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164633-66014.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164633-10050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164633-45970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164632-67746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164632-11845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164633-45970.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164634-63836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164634-27986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164634-72134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164635-35215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164635-55325.png)
上述四个函数中,满足所在定义域上“均值”为1的函数是 .(填入所有满足条件函数的序号)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164629-97116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164629-86704.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164629-99434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164627-16552.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164622-87674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164623-99247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164623-15735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164623-99983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164623-43669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164623-20511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164624-38070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164624-25801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164624-85965.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164624-86001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164624-24143.png)
其中正确的个数为 ( )
A.0个 | B.1个 | C.2个 | D.3个 |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164619-62693.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164619-56962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817164619-57178.png)
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