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(2000•嘉兴)在Rt△ABC中,CD是斜边AB上的高线,已知∠ACD的正弦值...
(2000•嘉兴)在Rt△ABC中,CD是斜边AB上的高线,已知∠ACD的正弦值是
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/0.png)
,则
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/1.png)
的值是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400005_ST/5.png)
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