执行机构变换运动,就其变换形式来说,常见的有( )。
A. 转动变移动
B. 转动变摆动
C. 连续变间歇
D. 以上说法都正确
查看答案
执行系统的作用是传递和变换运动与动力,即把传动系统传递过来的运动与动力进行必要的变换,以满足执行构件的要求
A. 对
B. 错
A newspaper report seems to_______the view of most members of Congress.
A. cope with
B. life-changing
C. invest
D. embracing
E. benefit from
F. first-hand
G. reflect
H. encounter
I. acquisition
J. routine
Government agencies must_______ more funds in training and development programmes.
A. cope with
B. life-changing
C. invest
D. embracing
E. benefit from
F. first-hand
G. reflect
H. encounter
I. acquisition
J. routine
We should know how to _______the relationship with our parents.
A. cope with
B. life-changing
C. invest
D. embracing
E. benefit from
F. first-hand
G. reflect
H. encounter
I. acquisition
J. routine
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