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【简答题】
在振荡电路图中,常采用 反馈。
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【简答题】需求差异定价法主要有哪几种形式?
【简答题】诗中说“青青子衿，悠悠我心”，青衿是古时学子的服装，“衿”指的是衣服上的哪一部分?
【单选题】听力原文：I doubt she can finish typing her research paper that is due tomorrow morning. Which of the following is closest in meaning to what you've just heard?
A.
I have no doubt that she will type her paper tomorrow.
B.
No one believes that she is a good typist.
C.
I didn't know she had so many pages to type tomorrow.
D.
It seems that she won't be able to complete her typing by tomorrow morning.
【单选题】I really wonder____ he has posted me many parcels_____ we didn't work together.
A.
how ,after
B.
why, when
C.
when, before
D.
why, since
【简答题】完形填空。 I've never been late for school, but yesterday I came very close. My alarm clock didn't 1 , and by the time l woke up, my father had already 2 into the bathroom and had to wait for him 3 . I had...
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