46.接地之目的為何?
(A)防止短路
(B)防止絕緣破壞
(C)防止感電
(D)節省電力
答案:登入後查看
統計: A(115), B(38), C(1171), D(2), E(0) #2475425
統計: A(115), B(38), C(1171), D(2), E(0) #2475425