4.運算放大電路(Operational amplifier)之虛接地特性(Virtual ground)是依據下列何種特性?
(A)開路增益無限大
(B)輸出阻抗為零
(C)頻寬無限大
(D)輸入阻抗無限大
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統計: A(14), B(20), C(10), D(43), E(0) #1197543
統計: A(14), B(20), C(10), D(43), E(0) #1197543