• 2022-06-19
    曲线[img=152x23]1803d63efb46100.png[/img],绕[img=11x14]1803d63f034bffc.png[/img]轴旋转所得旋转曲面的面积为( )
    A: [img=171x29]1803d63f0c23c67.png[/img]
    B: [img=25x18]1803d63f145f676.png[/img]
    C: [img=41x26]1803d63f1d6b6e6.png[/img]
    D: 4