带传动中,皮带的离心力所产生的拉应力,分布在皮带的( )。
A.紧边
B.做圆周运动的部分
C.作直线运动的部分
D.整个皮带上
参考答案:D
Most politicians are not ______ in that country. Which of the following is not OK? [ ]
A. well thought of
B. highly thought of
C. thought of well
D. much thought of
类风湿关节炎活动期的护理措施错误的是()
A.卧床休息
B.避免关节受压
C.四肢关节保持屈曲
D.足底放护足板
E.关节保暖