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【判断题】
二极管导通后,当流过二极管的正向电流发生改变时,其两端的电压变化变化很小,在输入大信号时,二极管导通后两的电压可近似看作不娈,此时二极管两端的电压称为该二极管的降,一般硅二极管约0.7V,锗二极管约0.3V。A.
正确
B.
错误
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【简答题】Read and complete perform encourage quit cooperate persuade My father sent me to learn to play football when I was four. He had never thought of training me to be a sports star some day. He ju...
【单选题】My father sent me _________ some milk for my grandfather.
A.
buy
B.
to buy
C.
buying
D.
bought
【单选题】面谈法作为培训需求调查的主要方法之一,有两种操作办法,即( )
A.
正式面谈法和非正式面谈法
B.
个别面谈法和隐私面谈法
C.
外面谈法和室内面谈法
D.
个人面谈法和集体会谈法
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【简答题】One summer day when I was in high school, my father sent me to buy some tools for our farm. I loved ___31____ better than driving our family truck to do something. But this time I was not so happy___3...
【简答题】The Power of a Good Name One summer day my father sent me to buy some wire and fencing to put around our barn to pen up the bull. At 16, I liked nothing better than getting behind the wheel of our tru...
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