设P={x|x<2},Q={x|x2<1},则( )
A.P⊆Q | B.Q⊆P | C.![]() | D.![]() |
更新时间:2023-01-06 21:46:29
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相似题推荐
单选题
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较易
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【推荐1】下列四种说法正确的个数有( )
①若
,
,
为三个集合,满足
,则一定有
;
②函数的图像与垂直于
轴的直线的交点有且仅有一个;
③若
,
,则
;
④若函数
在
和
都为增函数,则
在
为增函数.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea839182e307f7e0b28763d0abb41a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22882310035db6d3d953e060b0c91733.png)
②函数的图像与垂直于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45020afb5156159ad42add5537797ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c38edfcbc6d0348a9fc75376f629909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0892b68f0bf47aef15dea6ece769f947.png)
④若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d021029d216a1b24f712931ed1537d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bc960e7542d1f1ada519b085a8d603.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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名校
【推荐1】“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a0ab4bf53b653678fd56c08c6f3942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e482dd69ac1cf7f06552fdf25a217c.png)
A.必要而不充分条件 | B.充分而不必要条件 |
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
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解题方法
【推荐2】已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c62a95d66804ff8a6ddfed89a52530a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf98772664794197870eb4c0fd463f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf8b10e010fed8ae9fa5a99388a4432.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次