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用分贝表示放大器的增益完全是为了压缩数值范围和将乘法化筒为加法。( )

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用晶体三极管组成3种基本组态放大器,晶体管的3个电极均可作参考端用,但______电极不能作为输出端用,______

基线由一组配置项组成,这些配置项构成了一个相对稳定的逻辑实体,是一组经过__(64)__正式审查,批准达成一致的范围或工作产品。

A. 用户
B. 配置管理员
C. 配置管理委员会
D. 专家组

Since risk is associated with most projects,the best course of action is to (71)

A. cover all project risks by buying appropriate insurance
B. ignore the risks,since nothing can be done about them and move forward with the project in an expeditious manner
C. avoid project with clear and present risk
D. identify various risks and implement actions to mitigate their potential impact

场效应管共漏极放大电路如下图所示,已知工作点处的跨导gm=0.9mS,求电压增益Av、输入电阻Ri和输出电阻Ro

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