负反馈有4种组态,若要求输入电阻低,输出电压稳定,则在放大电路中应引入______负反馈。
参考答案:电压并联(或并联电压)
Every citizen should be responsible _____ his behaviors.[ ]
A. for
B. with
C. on
D. to
职业轮换制度