47.若電晶體偏壓電路中,基極電流IB=10μA,集極電流IC=lm A,射極電流IE=1.01mA,則共射極電流增益β爲何?
(A)99
(B)100
(C)101
(D)0.9 

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統計: A(7), B(27), C(18), D(13), E(0) #967222