___lights are very useful in our daily life.A) Electric B) Electronic C) Electricity D.Electrical
问题描述：
___lights are very useful in our daily life.A) Electric B) Electronic C) Electricity D.Electrical
______lights are very useful in our daily life.A) Electric B) Electronic C) Electricity D.Electrical
答
答案是（D） electric 电的；导电的 electic power 电源
electronic 电子的 electricity n.电流
electrical 电的 ；与电有关的 electrical apparatus 电器