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【单选题】
闭环放大倍数指的是( )。A.
A
B.
F
C.
AF
D.
Af
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皮皮学刷刷变学霸
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【多选题】关于BJT的特性曲线,下面说法中正确的是
A.
BJT的输入特性曲线描述基极电流i b 和发射结正偏电压v be 之间的关系
B.
测量每一条输出特性曲线时必须保持基极电流为常数
C.
BJT有三种工作状态：放大、饱和、截止
D.
饱和区和截止区分别相当于接通和断开的开关
【简答题】1 Prereading activities 二、Listen to the talk again and discuss the questions. 1. How does Michal learn English? 2. In your opinion, what is the most effective way to learn English?
【单选题】新闻工作的先天弱点是()。
A.
从业人员的收入低，地位低
B.
对事实需要进行歪曲和粉饰
C.
竞争激烈导致三俗内容多
D.
要在很短的时间里完成对社会事物的调查、认识、判断和选择
【简答题】Listen to the talk again and discuss the questions. 1. How does Michal learn English? 2. In your opinion, what is the most effective way to learn English?
【简答题】Do you think men are insensitive? If so, what makes them insensitive? 2. In your opinion, what characteristics should a boy/man possess? 3. How do you think a boy becomes a man? 4. In your opinion, wh...
【简答题】In your opinion, what is the most effective way to learn English?
【简答题】listen and talk 1. How does Michal learn English? 2 . In your opinion, what is the most effective way to learn English?
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