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磁盘上的磁道是( )。

单选题
2021-09-01 23:19
A、一组记录密度不同的同心圆
B、一组记录密度相同的同心圆
C、一组记录密度不同的阿基米德螺旋线
D、一组记录密度相同的阿基米德螺旋线
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正确答案
A

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