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【单选题】
用万用表测量某电路中一个NPN型三极管的静态工作电压时，发现UCE≈0时，管子处于（）。A.
放大状态
B.
饱和状态
C.
截止状态
D.
放大和截止状态
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A.
why
B.
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【单选题】— Do you happen to have twenty dollars on you? — ____? — I want to buy a reference book.
A.
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B.
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【单选题】When someone asks if you want another cup of coffee, and you want it very much, then you should say'______'
A.
No, thanks
B.
Yes, please
C.
No, please
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