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【多选题】
用直流电压表测得放大电路中某三极管各极电位分别是2V、6V、2.7V,则三个电极分别是( ),该( )型。A.
(B、C、E)
B.
(C、B、E)
C.
(E、C、B)
D.
(NPN)
E.
(PNP)
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反馈参考答案：
举一反三
【简答题】食物残渣排出体外的过程叫做（）。
【单选题】听力原文： My first semester of college was the worst I've been through. I had made plans during the summer to share an apartment with two of my close friends from high school. But before we moved in, prob...
A.
To look for two of her close friends.
B.
To stay at home and study.
C.
To share an apartment with friends.
D.
To move out and live alone.
【单选题】听力原文： My first semester of college was the worst I've been through. I had made plans during the summer to share an apartment with two of my close friends from high school. But before we moved in，probl...
A.
To look for two of her close friends.
B.
To stay at home and study.
C.
To share an apartment with friends.
D.
To move out and live alone.
【单选题】I can remember very few ______ when he had to cancel his plans because of poor health.
A.
situations
B.
conditions
C.
occasions
D.
circumstances
【简答题】阅读理解。 I once had my Chinese MBA students brainstorming on 'two-hour business plans'. I separated them into six groups and gave them an example:a restaurant chain. The more original their idea, the bet...
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