公务场合着装应遵循舒适自然。（）
参考答案：错
I wanted to know a party this evening. [ ]
A. if there was going to have
B. if there is going to be
C. if there was going to be
车轮动平衡与静平衡的关系为（）
A.当静平衡时一定为动平衡
B.当动平衡时一定静平衡
C.动平衡与静平衡为同一概念
