1:Average monthly residential electricity bill in 1999 in the United States was $70.68.
答 : 一年 $70.68X12=846.12
2.Consumer Appliances - Annual kilowatt hour usage
答:一年总共加起来用的是:7055度.
每度电0.12元.
3. 现在渥太华, 一千瓦的每度电给你接电网上, HYDRO OTTAWA 一年给你962.4元.相当于您用电不花钱.
答 : 一年 $70.68X12=846.12
2.Consumer Appliances - Annual kilowatt hour usage
答:一年总共加起来用的是:7055度.
每度电0.12元.
3. 现在渥太华, 一千瓦的每度电给你接电网上, HYDRO OTTAWA 一年给你962.4元.相当于您用电不花钱.