【简答题】What does “ You are the message” imply?
【单选题】冲激不变法,也称脉冲响应不变法,是根据离散脉冲传递函数和连续传递函数的______________在采样瞬间相等的原则,建立D(z)和D(s)的等效关系的。
【单选题】What does the message say? 46
A.
) The business has moved.
B.
) The business is having a sale.
C.
) The business is closed.
D.
) The business offers free delivery.
【单选题】What does the man give the woman?
B.
A message from the president
【单选题】What does the woman offer to do?
B.
Meet Michael at the research center.
C.
Check where Cynthia is.
D.
Escort the guests out.
【简答题】什么是连续系统的传递函数?什么是离散系统的脉冲传递函数?它们有什么实用意义? [指导信息]: 参见 2.1.5 用传递函数表示的系统模型,2.3.6 脉冲传递函数。
【单选题】What message does the caller leave?
A.
To tell May that Job rang her.
B.
To tell Mary that Job rang her.
C.
To tell Mary that John rang her.
【单选题】What message does the author try to convey in this passage?
A.
The power of true friendship can conquer anything.
B.
Young people should be careful in choosing their friends.
C.
Drugs can destroy innocent young people.
D.
Parents should talk with their children often.