单选题 较易0.85 引用1 组卷376
O为平面上的定点,A、B、C是平面上不共线的三点,若(
﹣
)•(
+
﹣2
)=0,则△ABC是
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572544530006016/1572544535650304/STEM/355d861eee45409c9dc59a388a89631d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572544530006016/1572544535650304/STEM/70064f704fb048ae89b110373000352c.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572544530006016/1572544535650304/STEM/355d861eee45409c9dc59a388a89631d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572544530006016/1572544535650304/STEM/70064f704fb048ae89b110373000352c.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572544530006016/1572544535650304/STEM/0ea0759a6a9644d09f38b94f10d3f071.png)
A.以AB为底边的等腰三角形 |
B.以AB为斜边的直角三角形 |
C.以AC为底边的等腰三角形 |
D.以AC为斜边的直角三角形 |
15-16高一上·安徽合肥·期末
类题推荐
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网