14-15高二上·广东汕头·期末
1 . 已知不重合的两直线
与
对应的斜率分别为
与
,则“
”是“
∥
”的
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/8cd5cf13adf942879db80bb7b8294d27.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/a2aa29bbc0334f55b4ac36000ca96f8b.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/c48454fd578e446f97b388164a839f12.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/e87917d29c944b55b70d528f51e448cb.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/57b1f2917134412691d913666ede83c9.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/8cd5cf13adf942879db80bb7b8294d27.png)
![](https://img.xkw.com/dksih/QBM/2014/3/28/1571586181505024/1571586186387456/STEM/a2aa29bbc0334f55b4ac36000ca96f8b.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不是充分也不是必要条件 |
您最近一年使用:0次
10-11高二·云南德宏·单元测试
名校
2 . 直线
和直线
的位置关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b8c450b75ebbe9f3e2851479ff1089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de523115864c62e93ac3e8bc0ef61e7.png)
A.重合 | B.平行 | C.垂直 | D.相交但不垂直 |
您最近一年使用:0次
2016-12-01更新
|
821次组卷
|
5卷引用:2011年云南省芒市第一中学高二秋季学期期中考试数学
(已下线)2011年云南省芒市第一中学高二秋季学期期中考试数学(已下线)2011—2012学年吉林长春外国语学校高一下学期第二次月考数学试卷2015-2016学年吉林省延边州汪清六中高二下3月月考文科数学试卷黑龙江省伊春市第二中学2016-2017学年高一下学期期中考试数学试题广西玉林市育才中学2021-2022学年高二上学期开学检测考试数学试题
11-12高一上·山东济宁·期末
3 . 下列各组中的两条直线平行的有几组?
(1)![](https://img.xkw.com/dksih/QBM/2011/2/23/1570006541008896/1570006545817600/STEM/e50046a3e0154a21920f8ca842c4747a.png)
![](https://img.xkw.com/dksih/QBM/2011/2/23/1570006541008896/1570006545817600/STEM/3908f4755dad4fb295c14ecb0852268f.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d9c31fb6eca53a50263050576e9d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8a053fa1a6592952e17aca651f0fe1.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59daa36437703dfc40ce2b1f87669053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d3646d4cbd5a029960be9e41d84447.png)
(1)
![](https://img.xkw.com/dksih/QBM/2011/2/23/1570006541008896/1570006545817600/STEM/e50046a3e0154a21920f8ca842c4747a.png)
![](https://img.xkw.com/dksih/QBM/2011/2/23/1570006541008896/1570006545817600/STEM/3908f4755dad4fb295c14ecb0852268f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d9c31fb6eca53a50263050576e9d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8a053fa1a6592952e17aca651f0fe1.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59daa36437703dfc40ce2b1f87669053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d3646d4cbd5a029960be9e41d84447.png)
A.0组 | B.1组 | C.2组 | D.3组 |
您最近一年使用:0次