下图左侧为顶尖的主视图和剖视图,指出右侧4个断面图中正确的A-
A:B-B断面图。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/76e1f0383d4c4120b87d9996feeb3669.png
发布时间:2024-04-07 23:03:49