题目
题型:填空题难度:简单来源:不详
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012226-18849.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012226-40579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012226-74316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012227-44290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012227-92493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012227-18139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012227-47790.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012219-79157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012219-78981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012219-63640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012216-68275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012217-74974.png)
15,-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012207-18455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012207-81461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815012207-74581.png)
(1)分数集合{ };
(2)整数集合{ };
(3)正有理数集合{ };
(4)负有理数集合{ };
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