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(2008•海南)如图所示,Rt△ABC∽Rt△DEF,则cosE的值等于( )...
(2008•海南)如图所示,Rt△ABC∽Rt△DEF,则cosE的值等于( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203347623983296/SYS201310201203347623983005_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203347623983296/SYS201310201203347623983005_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203347623983296/SYS201310201203347623983005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203347623983296/SYS201310201203347623983005_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203347623983296/SYS201310201203347623983005_ST/3.png)
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