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在△OAB中,,OD是AB边上的高,若则λ等于( ) A. B. C. D.
在△OAB中,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/0.png)
,OD是AB边上的高,若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/1.png)
则λ等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182727515383938/SYS201310241827275153839007_ST/5.png)
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