已知 U CC =12V, R E = 2kΩ, R B = 200kΩ , R L = 2kΩ ,晶体管 β=60 , U BE =0.6V, 信号源内阻 R S = 100Ω ,试求电压放大倍数为( ) 。
A.
0.5
B.
1
C.
10
D.
100
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