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(2004•哈尔滨)⊙O的半径为2,点P是⊙O外一点,OP的长为3,那么以P为圆...
(2004•哈尔滨)⊙O的半径为2,点P是⊙O外一点,OP的长为3,那么以P为圆心,且与⊙O相切的圆的半径一定是( )
A.1或5
B.1
C.5
D.1或4
考点分析:
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