• 2022-05-27
    直线[img=130x49]1802cfd41f67b08.png[/img]在平面[img=144x22]1802cfd4285efde.png[/img]上的投影直线的方程为( ).
    A: [img=130x49]1802cfd4326c8e6.png[/img]
    B: [img=153x49]1802cfd43c4becc.png[/img]
    C: [img=129x49]1802cfd446f4589.png[/img]
    D: [img=129x49]1802cfd450926eb.png[/img]