【单选题】对整个建设工程项目质量总目标进行策划、决策和实施监控,该任务属于( )。
【单选题】对整个建设工程项目质量总目标进行策划、决策和实施监控,该任务属于()。
【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】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
【单选题】The CMRR of an inverting amplifier always lower than that of its op-amp because _______.
A.
the common-mode gain of an op-amp increases when it is used in an inverting amplifier
B.
the value of differential gain for an inverting amplifier is lower than that of its op-amp
C.
slew-rate limiting decreases the common-mode gain of the op-amp
D.
of the lower input impedance of the inverting amplifier
【单选题】对整个工程项目质量目标进行策划、决策和实施监控,是( )的任务。
【单选题】在局域网中,属于通信子网范畴的是( )。