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如图,AB是⊙O的直径,C是⊙O上的一点,若AC=8,AB=10,OD⊥BC于点...
如图,AB是⊙O的直径,C是⊙O上的一点,若AC=8,AB=10,OD⊥BC于点D,则BD的长为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022163929145996608/SYS201310221639291459966007_ST/images0.png)
A.1.5
B.3
C.5
D.6
考点分析:
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A.
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B.
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D.
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观察下列几何体,主视图、左视图和俯视图都是矩形的是( )
A.
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B.
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C.
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D.
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A.m>-
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B.m<-
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C.m>
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D.m<
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A.
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C.
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D.
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