19. 如下圖所示,若I=6A,I1=2A,則R1與R2的關係為何?
(A)R1 =R2
(B)2R1 =R2
(C)R1 =2R2
(D)3R1 =2R2
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統計: A(0), B(0), C(1), D(1), E(0) #3933220
統計: A(0), B(0), C(1), D(1), E(0) #3933220