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如图,在Rt△ABC中,∠C=90°,∠A=30°,E为AB上一点且AE:EB=...
如图,在Rt△ABC中,∠C=90°,∠A=30°,E为AB上一点且AE:EB=4:1,EF⊥AC于F,连接FB,则tan∠CFB的值等于( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102712452361501/SYS201311031027124523615016_ST/images0.png)
A.A
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B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102712452361501/SYS201311031027124523615016_ST/1.png)
C.
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D.
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