To determine whether a straight line is parallel to a plane?[img=280x290]17d607f8cd019da.png[/img]
举一反三
- Determine whether this formula is correct:[img=287x25]1803a1c0b6e74bf.png[/img]
- When a body moves in a straight line at the speed [img=80x20]1803e2495cd4c09.png[/img], then the distance traveled by the object in the time interval [img=35x25]1803e2496523c5f.png[/img] is [img=178x51]1803e2497105aa4.png[/img].
- Determine whether the graphs is strongly connected or weakly connected.[img=318x210]1803bce821b1b87.png[/img] A: strongly connected B: Weakly connected
- 图示四杆机构中，若a=17，c=8，d=21.b在 条件下，CD杆为曲柄。[img=238x163]17de9083238b317.png[/img]
- 图示四杆机构中，若a=17，c=8，d=21.b在 条件下，CD杆为曲柄。[img=238x163]1803cd20c45079a.png[/img]