题目
题型:不详难度:来源:
A.命题“若![]() ![]() |
B.命题“![]() ![]() ![]() ![]() ![]() ![]() |
C.命题“![]() ![]() ![]() ![]() |
D.已知![]() ![]() ![]() |
答案
解析
A.命题“若
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072320-65468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072320-48559.png)
B.命题“
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072320-68146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072321-49793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072321-66050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072321-91656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-77672.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-38443.png)
C.命题“
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-57684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-72586.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-57684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072322-72586.png)
D.已知
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072321-91656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072323-73125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072323-59007.png)
核心考点
试题【下列说法中,正确的是A.命题“若,则”的逆命题是真命题B.命题“,使得”的否定是:“,都有或”C.命题“或”为真命题,则命题“”和命题“”均为真命题D.已知,则】;主要考察你对简单逻辑联结词等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-53926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-97964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-70059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-50911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-66618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-80511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072314-17986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072314-97887.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072314-48978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-97964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072313-70059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072314-64758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072315-89546.png)
设命题
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072306-98799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072306-11493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072307-35568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072307-80224.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072306-11493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072307-88145.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072307-21721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072306-11493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072300-39770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072301-96550.png)
A.p是假命题;![]() ![]() ![]() |
B.p是假命题;![]() ![]() ![]() |
C.p是真命题;![]() ![]() ![]() |
D.p是真命题;![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072255-52036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072255-78861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072255-29532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103072255-52515.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
A.命题“若![]() ![]() |
B.设![]() ![]() ![]() ![]() |
C.命题“![]() ![]() |
D.已知![]() ![]() ![]() |
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