头痛最为剧烈的是()
A.颅内血肿
B.三叉神经痛
C.肌紧张性头痛
D.偏头痛
E.脑膜受刺激
参考答案:B, D, E
-Jenny, what would you like to eat for lunch, pizza, pasta or sushi?
-_______ I have a good appetite.[ ]
A.Sounds good.
B.You're so considerate.
C.It's up to you.
D.It depends.
如果末端装置、工具或周围环境的刚性很高,那么机械手要执行与某个表面有接触的操作作业将会变得相当困难。此时应该考虑()。
A.柔顺控制
B.PID控制
C.模糊控制
D.最优控制