已知内一点满足关系式，则的面积与的面积之比为（A） �

已知内一点满足关系式，则的面积与的面积之比为

（A）（B）（C）（D）

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已知内一点满足关系式，则的面积与的面积之比为 （A） �

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已知内一点满足关系式，则的面积与的面积之比为（A） �