問題詳情
4 Electronic circuits are mainly used to control, process and distribute information, and for the ....... anddistribution of electric power.
(A) commutation
(B) contamination
(C) conversation
(D) conversion
參考答案
答案:D
難度:困難0.230769
統計:A(6),B(2),C(1),D(3),E(0)