精选优质文档-倾情为你奉上分享一些老外写的小作文范文第一篇 作文题目第一篇 范文参考 model answer: The two graphs show that oil was the major energy source in the USA in both 1980 and 1990 and that coal, natural gas and hydroelectric power remained in much the same proportions. On the other hand, there was a dramatic rise in nuclear power, which doubled its percentage over the ten years. Oil supplied the largest percentage of energy, although the percentage decreased from 42% in 1980 to 33% in 1990. Coa
