• 2022-06-19
    设直线过两点A(1,2,3)和B(3,4,2),则该直线的对称式方程为( )
    A: [img=153x43]18039f8c7102405.png[/img]
    B: [img=169x44]18039f8c7929dda.png[/img]
    C: [img=145x43]18039f8c8242c5f.png[/img]
    D: [img=169x44]18039f8c8b5e2a9.png[/img]