【判断题】【消耗次数：1】
微分控制无法消除偏差，只能作为一种辅助控制作用。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【简答题】
[填空]是一种关于模型的抽象机制，起一种控制作用。
【单选题】
接触器是一种自动控制电器，其作用是：（）。
①
不频繁地接通或断开电路
②
频繁地接通或断开电路，但不具备任何保护功能
③
频繁的接通或断开电路，且具有一定的保护功能
④
和普通开关的作用基本相同，只是能够控制的距离较远
随机题目
【单选题】
If it were not for the fact that he was a millionaire, she ____ him.
①
might never marry
②
will never marry
③
would never have married
④
would never marry
【单选题】
On his next birthday he （） married for ten years.
①
has been
②
will be
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will have been
④
would have been
【单选题】
Hi, welcome back! Had a nice trip?____________
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Oh, fantastic! Fresh air, and sunshine every day.
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Come on, I’ve got lots of fun.
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By the way, I don’t like Saturdays.
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Well, I’ll look forward to your phone call.
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What（）next will be discussed at the next meeting.
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to do
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is doing
③
will do
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shall we do
【单选题】
_______ his sister, Jack is quiet and does not easily make friends with others.
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Dislike
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Liking
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Alike
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Unlike
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How do you do? Glad to meet you._________
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Fine. How are you?
②
How do you do? Glad to meet you, too.
③
How are you? Thank you!
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Nice. How are you?
【单选题】
Don’t take any action until you are fully _____ with the situation there.
①
consented
②
content
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obvious
④
acquainted
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When a fire____ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
①
broke off
②
broke out
③
broke down
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broke up
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What a bad memory I’ve got! I even forgot ______ the book with me.
①
took
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taking
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take
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taken