【单选题】For an ideal op amp, why the input current through both the inverting and noninverting input terminal are 0?
A.
For an ideal op amp, the output impedance is 0.
B.
For an ideal op amp, the output impedance is infinity.
C.
For an ideal op amp, the input impedance is infinity.
D.
For an ideal op amp, the input impedance is 0.
【单选题】以下哪项不属于威胁网络安全的范畴。( )
【单选题】when an op-amp operates in a nonlinear region, which statement is not correct ( )
A.
the op-amp is with no feedback
B.
the op-amp is with a positive feedback
C.
the op-amp is with a negative feedback
D.
the output voltage is equal to +Uom or -Uom
【简答题】在网络管理中,网管服务器对被控设备发出启动、停止等控制命令是属于( )管理的范畴。
【简答题】在网络管理中,网管服务器对被控设备发出启动、停止等控制命令是属于( )管理的范畴。
【多选题】以下属于对目标网络信息收集范畴的是()。
【单选题】在局域网中,属于通信子网范畴的是( )。