• 2022-06-07
    直线[img=135x43]17da5fcd452ea9c.png[/img]与平面[img=119x21]17da5fcd5269165.png[/img]的夹角为( )
    未知类型:{'options': ['17da3b9f7c9b80a.png;', ' [img=17x41]17da3b9f8d62866.png[/img];', ' [img=17x41]17da3b397935f31.png[/img];', ' [img=17x41]17da3b9f9c0c6cd.png[/img].'], 'type': 102}