【判断题】【消耗次数：1】
在多级放大电路中，后级的输入电阻是前级的负载电阻。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
在放大电压信号时，通常希望放大电路的输入电阻和输出电阻分别为（）。
①
输入电阻小，输出电阻大
②
输入电阻小，输出电阻小。
③
输入电阻大，输出电阻小。
④
输入电阻大，输出电阻大。
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