圖示理想運(yùn)算放大電路中,負(fù)載電流IL為()
A.1/3mA B.mA C.1mA D.2mA
圖示電路中,A、B端電壓U=()
A.-2V B.-1V C.2V D.3V
A.開(kāi)展員工培訓(xùn) B.增加職工福利 C.注重經(jīng)濟(jì)效益 D.維護(hù)企業(yè)信譽(yù)