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【单选题】
给乙类推挽功率放大电路设置静态工作点，其目的是A.
消除饱和失真
B.
减小放大倍数
C.
消除交越失真
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反馈参考答案：
举一反三
【判断题】For a cartel behaving like a pure monopoly, equating marginal revenue to marginal cost maximizes profit over and above the perfectly competitive profit.
A.
正确
B.
错误
【单选题】It is reported ________great changes have been made.
A.
which
B.
that
C.
while
D.
what
【单选题】What he saw in the mountain village ________ him to write a report about the great changes there.
A.
entertained
B.
increased
C.
inspired
D.
supported
【单选题】---- It is the second time that I _________ to Shanghai. ----- What great changes! It’s ten years since I _______ there last time.
A.
have been; went
B.
had been; went
C.
am; had been
D.
come; had been
【单选题】一篇论文列出的参考文献如下:林葆.植物硫营养研究的现状与展望[J].土竣肥料,1996,29(3):16-19. 其中的29(3):16-19应该是( )。
A.
29期16-19页
B.
29卷3期16-19页
C.
29期3页16-19行
D.
29卷3页16-19行
【单选题】— Do you mind if I record your lecture? — _________________. Go ahead.
A.
Never mind
B.
No, you’d better not
C.
Not at al
【单选题】—Do you mind if I pick your brains for a second? —Of course not.________
A.
What do you think?
B.
What's on your mind?
C.
What do you mean?
D.
What's wrong with you?
【单选题】No matter what changes have taken place, nobody can _______the fact that the experiment is a great success. [ ]
A.
value
B.
ignore
C.
observe
D.
support
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