接收机对临近干扰的抑制能力主要取决于（）
A.高频谐振回路
B.中放谐振回路
C.混频器
参考答案：A
---- Was it by cutting down staff _ _she saved the firm?
---- No, it was by improving work efficiency.
A．when
B．what
C．how
D．that
晚上守库值班期间，如守库值班人员发现库区电线、电话线、报警器线路遭到人为破坏应如何应对？
