题目

输送4800kW的电功率，分别采用120kV高压和240V电压输电，输电线上的电流之比是多少？损失的电功率之比是多少？ 答案：I1／I2=1／500，P1／P2=1／250000  35．200V词汇。（10分）【1】I don’t like going shopping. It’s _______________ (拥挤) there.【2】How was your ______________(假期)?【3】Liu Huan is a ____________(著名的)singer.【4】I want to be an_____________(工程师).【5】How will people celebrate the __________ (开幕式) of the new school?【6】My idea is d_________ from yours. Do you agree with me?【7】Alice is an o girl. She likes to stay with her friends and enjoys talking.【8】It’s n for students to finish homework on time.【9】We usually have three m ______ a day.【10】Let’s make a banana milk s_______.