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(2000•西城区)如图,PA、PB分别切⊙O于A、B两点,如果∠P=60°,P...
(2000•西城区)如图,PA、PB分别切⊙O于A、B两点,如果∠P=60°,PA=2,那么AB的长为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232717094955226/SYS201310212327170949552003_ST/images0.png)
A.1
B.2
C.3
D.4
考点分析:
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