题目
题型:单选题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-18711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-96312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-92358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-98600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-93507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-96312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-92358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-98600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-53356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-43926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001417-67377.png)
A.10个 | B.15个 | C.16个 | D.18个 |
答案
解析
试题分析:由于两个正整数
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-18711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-96312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-92358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-98600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-93507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001415-96312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-92358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-98600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-53356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001416-43926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001417-67377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001417-81179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001417-81179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001417-81179.png)
核心考点
试题【对于任意两个正整数,定义某种运算“※”如下:当都为正偶数或正奇数时, ※=;当中一个为正偶数,另一个为正奇数时, ※=.则在此定义下,集合※中的元素个数是( 】;主要考察你对集合的概念与表示等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001411-96859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001411-42633.png)
(1)求集合
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001412-64687.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001412-88104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001412-53414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001405-25498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001405-15395.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001405-48817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001405-84209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001406-28794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001406-80243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001403-20939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001403-68654.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001403-92794.png)
A.1 | B.0 | C.-1 | D.1或-1 |
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001359-32381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001359-52824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001359-14387.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001400-63900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001400-27667.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001400-17201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001400-71373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001356-83748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815001356-58183.png)
A.M | B.N | C.I | D.![]() |
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