【判断题】【消耗次数：1】
叠加定理可以用在非线性系统。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
关于线性系统稳态误差，正确的说法是：（）
①
一型系统在跟踪斜坡输入信号时无误差；
②
稳态误差计算的通用公式是；
③
增大系统开环增益K可以减小稳态误差；
④
增加积分环节可以消除稳态误差，而且不会影响系统稳定性。
随机题目
【单选题】
_______ the English examination, I would have gone to the concert last Sunday.
①
In spite of
②
But for
③
Because of
④
As for
【单选题】
By the time he was twelve, Edison____ to make a living by himself.
①
would begin
②
has begun
③
had begun
④
was begun
【单选题】
The popular singer who had been praised very highly____ to be a great disappointment.
①
turned in
②
turned out
③
turned up
④
turned down
【单选题】
Mary realized she ____ .
①
is made fun of
②
was making fun of
③
was being made fun of
④
is being made fun of
【单选题】
We often get _______ when people cut in line.
①
annoying
②
annoyed
③
to annoy
④
annoy
【单选题】
_______ the bad storm Tom delivered the newspapers on time.
①
In favor of
②
In spite of
③
In front of
④
In charge of
【单选题】
One of my ____ sentences is: there is no smoke without fire.
①
faithful
②
favorite
③
favorable
④
famous
【单选题】
Theboysspentthewholemorning____ possibleanswerstothequestion.
①
discuss
②
to discuss
③
discussing
④
discussed
【单选题】
Woman: Bob, do you think you can lend me fifty dollars? Bob: Let me see. ____
①
You know I have no money at all.
②
Sorry, I don’t think I have much with me.
③
I don’t think you should do it.
④
Oh, I have quite a lot.