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圆锥面是一母线SA绕与它相交成一定角度的轴线SO回转面而成，在圆锥面上通过锥顶S的任一直线称为圆锥面的素线。

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圆锥面是一母线SA绕与它相交成一定角度的轴线SO回转面而成，在圆锥面上通过锥顶S的任一直线称为圆锥面的素线。

A.正确

B.错误

参考答案:

答案：A

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