如图,点B、D在线段AC上,
,E是AB的中点,F是CD的中点,EF=5,则AB的长为( )
![](https://img.xkw.com/dksih/QBM/2021/9/11/2805658200260608/2805881411198976/STEM/f39b01146a534f8cbf4c3134529b9965.png?resizew=317)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903ab59b971b400fe58ee57cd11fa592.png)
![](https://img.xkw.com/dksih/QBM/2021/9/11/2805658200260608/2805881411198976/STEM/f39b01146a534f8cbf4c3134529b9965.png?resizew=317)
A.5 | B.6 | C.7 | D.8 |
更新时间:2021-09-11 16:43:15
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