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【多选题】
离散系统的数学模型有A.
微分方程
B.
差分方程
C.
脉冲传递函数
D.
离散状态空间表达式
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反馈参考答案：
举一反三
【简答题】试述化学毒物对机体损伤的主要作用机制。
【单选题】听力原文：Pass me the bottle of water, please. (5)
A.
That's great.
B.
That's all right.
C.
Here you are.
D.
It doesn't matter.
【单选题】—Let's play soccer. —_______. Let's play ping-pong. [ ]
A.
That's great.
B.
That sounds good.
C.
That's boring.
D.
Yes, I do.
【单选题】— Have you heard the new benefit system is to take effect? — Yes. That's great, yet some worry it may ____ laziness. [ ]
A.
encourage
B.
develop
C.
cause
D.
prevent
【单选题】— ? —That's great!
A.
What are you going to eat at the Mexican restaurant
B.
When are you going to dinner at the Mexican restaurant
C.
How about going to dinner at the Mexican restaurant tonight
【简答题】A．Leave it to me. B．That's a good idea. C．That's great. D．Ten o'clock.
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