39. Which technical term is referred to as the zero-potential reference of an
electric/electronic system?
(A) Penetration
(B) Filtering
(C) Shielding
(D) Ground
答案:登入後查看
統計: A(90), B(92), C(76), D(491), E(0) #1444962
統計: A(90), B(92), C(76), D(491), E(0) #1444962