判断题

由于放大电路的放大对象是变化量，所以当输入信号为直流信号时，任何放大电路的输出毫无变化
正确
错误

答案：错误

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变压器短路试验时，其短路损耗近似等于短路电流流过变压器时，高低绕组中的总的铜损耗。

答案：错误

单项选择题

If a job is highly formalized, it would not include which of the following?( ) A. clearly defined procedures on work processes B. explicit job description C. high employee job discretion D. a large number of organizational rules E. a consistent and uniform output