如图,已知AB∥CF,E为DF的中点,若AB=8㎝,CF=5㎝,则BD为( ).
![](https://img.xkw.com/dksih/QBM/2017/11/23/1823449320316928/1825063426424832/STEM/82566f1ef25142c3b9211f0bd113533f.png?resizew=165)
![](https://img.xkw.com/dksih/QBM/2017/11/23/1823449320316928/1825063426424832/STEM/82566f1ef25142c3b9211f0bd113533f.png?resizew=165)
A.2㎝ | B.3㎝ | C.4㎝ | D.1㎝ |
更新时间:2017-11-25 22:43:57
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