1 . 已知
,“
且
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0b18a54e843cb4e365ae15b4188317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa91d4164e9cd127baaffe1c4739433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23bbed79184c8ef361e94281ecccfc4.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-08-04更新
|
232次组卷
|
3卷引用:2020届清华大学中学生标准学术能力诊断性测试高三5月测试数学(文)试题(一卷)
2020届清华大学中学生标准学术能力诊断性测试高三5月测试数学(文)试题(一卷)(已下线)专题01 集合与常用逻辑用语——2020年高考真题和模拟题文科数学分项汇编陕西省西安市鄠邑区2023-2024学年高一上学期期中数学试题
2 . 设不等式组
,表示的平面区域为
,命题
:点
在区域
内,命题q:点
在区域
内.则下列命题中,真命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe2f03b9b3a0116c576fc7cb8831d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知点
,且点
为不等式组
,所表示平面区域内的任意一点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc420ba33acdb7549b04cd0de73ee67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1d63294ee7f92dab9eb37aac5fc064.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 设满足约束条件
的变量
,
形成的区域为
,有下列四个命题:
:
,
;
:
,
;.
:
,
;
:
,
.
其中正确命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f542322714786497eb3e55975a29bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0c5a96a4f87442cbfc05e59de281ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8b7355db79b083bc5f47a4fb65108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0c5a96a4f87442cbfc05e59de281ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70723cb009d2e2ed435d31dd9c8818a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b21b872313f7d8c5b606981f954a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9309362eb34cd9d0d5757836f8d2fc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8b7355db79b083bc5f47a4fb65108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc119550ce4fc5f3d1daf996e7243bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9309362eb34cd9d0d5757836f8d2fc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70723cb009d2e2ed435d31dd9c8818a7.png)
其中正确命题的个数为( )
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
5 . 设不等式组
表示的平面区域为
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2153a80ad11ab1116d1b2627d540f1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595044a7750ab4f84519041979c3d780.png)
A.![]() ![]() | B.![]() ![]() |
C.点![]() ![]() ![]() | D.若点![]() ![]() |
您最近一年使用:0次
2018-12-19更新
|
405次组卷
|
3卷引用:2020届全国大联考高三4月联考理科数学试题