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(2000•山西)已知:如图,在Rt△ABC中,∠C=90°,AB=10,sin...
(2000•山西)已知:如图,在Rt△ABC中,∠C=90°,AB=10,sinB=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400028_ST/0.png)
,BC的长是( )
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A.2
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B.4
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232730893840004/SYS201310212327308938400028_ST/2.png)
D.
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