• 2022-06-06
    图示手柄的平面图形,画圆弧的顺序依次为( )。[img=426x215]1803c0d811612fd.jpg[/img]
    A: R15、R12、R50、R10
    B: R15、R10、R50、R12
    C: R10、R12、R15、R50
    D: R15、R10、R12、R50