【名词&注释】
液压缸(hydraulic cylinder)、液压泵(hydraulic pump)、输送机(conveyor)、机械故障(mechanical fault)、输入电阻(input resistance)、额定功率(rated power)、压串联负反馈(factor voltage series negative feedback)、电流串联负反馈(series electric circuit negative feedba ...)、电流并联负反馈(current-shunt negative feedback)、电压并联负反馈(negative feedback of voltage parallel)
[单选题]要提高放大器的输入电阻,并且使输出电压稳定,可以采用()。
A. 电压串联负反馈(factor voltage series negative feedback)
B. 电压并联负反馈(negative feedback of voltage parallel)
C. 电流串联负反馈(series electric circuit negative feedba)
D. 电流并联负反馈(current-shunt negative feedback)