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(2006•大连)已知两圆的圆心距O1O2为3,⊙O1的半径为1,⊙O2的半径为...
(2006•大连)已知两圆的圆心距O1O2为3,⊙O1的半径为1,⊙O2的半径为2,则⊙O1与⊙O2的位置关系为 .
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