1. 試求圖2之I2。
(A)I2 =1A
(B)I2 =2A
(C)I2 =3A
(D)I2 =4A
答案:登入後查看
統計: A(4), B(7), C(65), D(2), E(0) #2711963
統計: A(4), B(7), C(65), D(2), E(0) #2711963