21 如圖所示電路主要作用為: 
(A)電壓緩衝器(Voltage Buffer)
(B)電流放大器(Current Amplifier)
(C)轉阻放大器(Transresistance Amplifier)
(D)截波電路( R Limiter Circuit)

(A)電壓緩衝器(Voltage Buffer)
(B)電流放大器(Current Amplifier)
(C)轉阻放大器(Transresistance Amplifier)
(D)截波電路( R Limiter Circuit)
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統計: A(91), B(30), C(3), D(4), E(0) #845953
統計: A(91), B(30), C(3), D(4), E(0) #845953