• 2022-06-03
    直线[img=179x44]18030c43544bb0c.png[/img]与直线[img=141x51]18030c435f58543.png[/img] 则[img=19x22]18030c4367700ba.png[/img]与[img=19x22]18030c436ff1242.png[/img]的夹角为( ).
    A: [img=11x39]18030c43788bde2.png[/img]
    B: [img=11x39]18030c4380d154c.png[/img]
    C: [img=11x39]18030c43891ce96.png[/img]
    D: 0
    E: [img=11x14]18030c4391994f7.png[/img]
    F: [img=20x43]18030c4399b2cb8.png[/img]
  • 举一反三