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【单选题】
某传感器产生的电压信号(几乎不能提供电流),经过放大后希望输出电流与信号成正比,此放大电路A.
电流串联负反馈
B.
电压并联负反馈
C.
电流并联负反馈
D.
电压串联负反馈
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【简答题】Directions; Complete the following passage by using the words in the box．Each word can only be used once．Note that there is one word more than you need． A．survey B．off C．better D．ca...
【判断题】“党内规矩有的有明文规定,有的没有,但作为一个党的干部特别是高级干部应该懂的。不懂的话,那就不具备当干部特别是高级干部的觉悟和水平。没有明文规定一定要报的事项,报还是不报,关键看党的观念强不强、党性强不强。领导干部违纪往往是从破坏规矩开始的。规矩不能立起来、严起来,很多问题就会慢慢产生出来。很多事实都证明了这一点。讲规矩是对党员、干部党性的重要考验,是对党员、干部对党忠诚度的重要检验。”这段话出自...
A.
正确
B.
错误
【单选题】听力原文：M: (7)This book is due today, but I am not finished. Can I get it renewed? W: French Art & Architecture of the 19th Century. I have to check. Can I have the book and your library card? M: Sure. I...
A.
He does not have his library card with him.
B.
He does not want to return the book right now.
C.
He does not like the system of putting books on hold.
D.
He does not want to pay the fine.
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