真题
名校
1 . 设
为非零向量,且相互不共线,下列命题
①
;②
;
③
不与
垂直;④
.
其中真命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5098649263f8de0afeec0c71ca2423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba2fedd9869550b124f8c5a4cd29a1d.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cc5884db635bd3d75fd9ce5230b61b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775bbc1bbdc1230836409fa1bc6fc724.png)
其中真命题是( )
A.①② | B.②③ | C.③④ | D.②④ |
您最近一年使用:0次
2021-08-27更新
|
641次组卷
|
3卷引用:2000年普通高等学校招生考试数学(理)试题(新课程卷)