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1 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ecfa5aeaf5388f8780b0f960d330ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-08-23更新
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1179次组卷
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7卷引用:广东省东莞市北师大东莞石竹附属学校2019-2020学年高一10月月考数学试题
2 . 如图,
与圆
相切于点
,直线
交圆
于
两点,弦
垂直
于
.则下面结论中,错误的结论是
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/b2df773a37f44a55819580eea066025c.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/1e6de715c71947ffb93698c644fb08fd.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/aad3fe08b4ff44f7ae29e6ae788bfe83.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/92a4e272faa64a3fbfdd5daf7da7701c.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/699d77a28d5746c28a8b90aa38ed688b.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/aad3fe08b4ff44f7ae29e6ae788bfe83.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/a776c881234744d0a931057ed759000d.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/3c5272f03da246a18f4f34b914d1b487.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/20bafe97868e4767be2734d9433e31fd.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/3053f4b15ac14e178496c968a14f9463.png)
![](https://img.xkw.com/dksih/QBM/2015/11/18/1572294899572736/1572294905364480/STEM/b2df773a37f44a55819580eea066025c.png)
A.![]() | B.∠ACE=∠ACP |
C.![]() | D.![]() |
您最近一年使用:0次
9-10高二下·河南焦作·期末
3 . 已知,如图,在梯形ABCD中,AD∥BC,AD=3,BC=7,点M,N分别是对角线BD,AC的中点,则MN=
![](https://img.xkw.com/dksih/QBM/2014/11/10/1571892604821504/1571892610424832/STEM/efd44bfec3544256b3ebb2de320a755f.png)
![](https://img.xkw.com/dksih/QBM/2014/11/10/1571892604821504/1571892610424832/STEM/efd44bfec3544256b3ebb2de320a755f.png)
A.2 | B.5 | C.![]() | D.![]() |
您最近一年使用:0次