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【简答题】
硅管放大电路如下图所示，试解答： (1)求出静态工作点I CQ 和U CEQ ； (2)画出微变等效电路，并求出放大电路的输入电阻R i 和输出电阻R o ； (3)计算电压放大倍数 。
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【单选题】From the fact that in some developed countries smoking is now more common among teenage girls than boys, we can predict that in the days to come, ______.
A.
women will have the same diseases as men
B.
more women may suffer from smoking than men
C.
the smoking rates among men and women will drop
D.
the teenage girls today may give up smoking when they are grown-ups
【单选题】In many countries now, smoking is not ______ in public places.
A.
permissive
B.
permissible
C.
permutable
D.
pernicious
【简答题】描述蛙的心脏和血液循环路线的特点。
【单选题】Smoking is now _____ in many public places such as the concert hall, the cinema, the museum,
A.
c.
B.
promoted
C.
forgiven
D.
forbidden
E.
prevented
【简答题】描述蛙的心脏和血液循环路线的特点。
【单选题】107在 SAP Business One 中定义佣金组的路径是( )
A.
管理 > 系统初始化 > 常规设置 > 销售
B.
管理 > 设置 > 常规 > 销售员
C.
管理 > 设置 > 常规 > 佣金组
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