解题方法
1 . 如图,矩形
中,
,E为边AB的中点,将
沿着直线DE翻折成
.若M为线段
的中点,则在
翻折过程中,下面四个命题中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/ef166265-12ed-4fcf-b393-b1d503d3a233.png?resizew=301)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e4a162f12d12a082b8d8fdd1aeab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/ef166265-12ed-4fcf-b393-b1d503d3a233.png?resizew=301)
A.![]() | B.点M运动轨迹在某个圆周上 |
C.存在某个位置,使![]() | D.![]() ![]() |
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