题目内容
（请给出正确答案）
[主观题]
In the mechanism, bar OA rotates with angular velocity w in counterclockwise direction. Wh
ich velocity parallelogram is correct if point B on bar BCD is chosen as the moving point and the moving reference frame is attached to bar OA？
A、
B、
C、
D、
提问人：网友sony321
发布时间：2022-01-07
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