什麽是延迟AGC特性?
参考答案:
延迟AGC特性是指在输入信号不大时,AGC电路不起作用,放大器按原电路最大增益放大,当输入信号电平超过某值时,AGC电路才起作用。
企业现金清查中,经检查仍无法查明原因的现金溢余,经批准后应计入( )。
A.其他业务收入 B.营业外收入C.管理费用 D.营业外支出
His uncle _____ for more than 9 years.[ ]
A. has come here
B. has started to work
C. has lived there
D. has left the university