选择题:在由555定时器组成的多谐振荡器中,电源电压Vcc不变,减小控制电压Uco时,振荡频率会升高。

题目内容:

在由555定时器组成的多谐振荡器中,电源电压Vcc不变,减小控制电压Uco时,振荡频率会升高。

A.正确

B.错误

参考答案:

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