• 2022-07-02
    直径为d的圆形截面对形心轴的惯性矩为( )?
    A: [img=27x46]1803238ad2bb199.png[/img]
    B: [img=27x46]1803238adb5f127.png[/img]
    C: [img=27x46]1803238ae41b562.png[/img]
    D: [img=27x46]1803238aec45b9b.png[/img]