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(2002•盐城)如图,⊙O的直径AB=10,P为OA上一点,弦MN经过点P,若...
(2002•盐城)如图,⊙O的直径AB=10,P为OA上一点,弦MN经过点P,若AP=2,MP=2,那么MN的长为( )
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A.7
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B.10
C.5
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232550768596924/SYS201310212325507685969008_ST/1.png)
D.4
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