• 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]180378ed5d7bb4e.jpg[/img]
    A: [img=785x698]180378ed6dd7f47.jpg[/img]
    B: [img=774x698]180378ed800a2d6.jpg[/img]
    C: [img=785x711]180378ed91d9af9.jpg[/img]
    D: [img=785x705]180378eda41f4ab.jpg[/img]
  • 举一反三