• 2022-06-28
    下图△ABC为正平面,则下列投影图中△ABC的投影正确的是( )[img=395x421]180363b905ab9c9.png[/img]
    A: [img=399x425]180363b910775eb.png[/img]
    B: [img=355x390]180363b91ae5312.png[/img]
    C: [img=452x481]180363b9257b453.png[/img]
    D: 以上都不对