• 2022-07-25
    求直线EF与平面四边形ABCD的交点,并判别可见性,请选择正确的答案。[img=785x705]1802f93b5aa069f.jpg[/img]
    A: [img=785x698]1802f93b69498d1.jpg[/img]
    B: [img=774x698]1802f93b7968d4e.jpg[/img]
    C: [img=785x711]1802f93b88a47f8.jpg[/img]
    D: [img=785x705]1802f93b97b0c3a.jpg[/img]
  • 举一反三