【单选题】
I don't know ____ to deal with such matter.
A. what
B. how
C. which
D. /
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答案
B
解析
暂无解析
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【单选题】
28在以下三种电路中输入电阻最大的电路是___。
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29在以下三种电路中既能放大电流,又能放大电压的电路是___。
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30在以下三种电路中输出电阻最小的电路是___;
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【单选题】
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【单选题】
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【单选题】
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【单选题】
36在由PNP晶体管组成的基本共射放大电路中,当输入信号为1KHz、5mV的正弦电压时,输出电压波形出现了底部削平的失真。这种失真是___ 。
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【单选题】
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【单选题】
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