• 2022-06-04
    设[img=13x19]1802cedce04d9d3.png[/img]是由[img=88x26]1802cedce84b094.png[/img]绕[img=9x14]1802cedcf11b358.png[/img]轴旋转一周所成曲面与平面[img=103x22]1802cedcfa1ff7f.png[/img]所围成的空间闭区域,则[img=141x60]1802cedd055004c.png[/img]的值( ).
    A: [img=31x43]1802cedd0da82f2.png[/img]
    B: [img=31x43]1802cedd15f0067.png[/img]
    C: [img=31x43]1802cedd1fa7a9c.png[/img]
    D: [img=31x43]1802cedd281499b.png[/img]
  • 举一反三