填空题-单空题 适中0.64 引用1 组卷709
如图,直线
垂直于圆
所在的平面,
内接于圆
,且
为圆
的直径,点
为线段
的中点.现有以下命题:
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/f3d7162840d746e1bf9ec1edc983bd2e.png?resizew=186)
①
;
②
平行
;
③点
到平面
的距离等于线段
的长.
其中正确的命题为_______ .
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/d2c78d5bdfaa4aaa9e56d96e7f0a4190.png?resizew=25)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/475dfc82fd4143c0bd09ac455df236b3.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/f8687b8e49c94dec9fffaf2f1b281421.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/475dfc82fd4143c0bd09ac455df236b3.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/f77a8aa270cd46889a54279dcbab3092.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/475dfc82fd4143c0bd09ac455df236b3.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/2ff16dc679904760a3e027dd20898e70.png?resizew=21)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/97796ba4842e407581541be93932cc6c.png?resizew=25)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/f3d7162840d746e1bf9ec1edc983bd2e.png?resizew=186)
①
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/06782aec7b444b7fb51db042a5120dce.png?resizew=67)
②
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/2be8f3bf765146a9892fedc77518d194.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/7cce11330be842baab599f6dadc869b3.png?resizew=37)
③点
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/1adc1b6f98aa4728952a80848c07fab5.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/3897fbd1df16488fb1c577229ec177ab.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572515124043776/1572515251527680/STEM/916bec4ad3d2419b8ad3205b3aaaa111.png?resizew=27)
其中正确的命题为
15-16高一·河南·期末
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