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如图,D、E分别是△ABC的AB、AC边上的点,且DE∥BC,AD:DB=2:1...
如图,D、E分别是△ABC的AB、AC边上的点,且DE∥BC,AD:DB=2:1,则△ADE与△ABC的周长比为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103141826/SYS201311031017191031418002_ST/images0.png)
A.2:3
B.4:9
C.3:2
D.9:4
考点分析:
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