1 . 已知集合
,则
中的元素个数有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a32daed9711cf7fcd7f8f935959dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
名校
2 . 已知两个点
,
,若直线上存在点
,使得
,则称该直线为“
直线”
给出下列直线:①
,②
,③
,则这三条直线中有几条“
直线”( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c932b55ae903b719ab1ae99bc129e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbed1681d7edc6ce6b7b1c8b2179c281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee28cb74d074b3a1ca8f8716c826dc73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ec46696a085513583c6723983faa67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ac1756e6cc3266bd7198a024f871af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6342e0a5a8942cfb1cf535ceb2c50d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ec46696a085513583c6723983faa67.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-05-30更新
|
578次组卷
|
3卷引用:云南省昆明市第十四中学2023-2024学年高二下学期4月月考数学试卷