问题描述： an average of 和the average of的区别 1个回答 分类：英语 2014-12-07 问题解答： 我来补答 the average of 是指具体的某事物的平均数,an average of是泛指某个平均数,不是特指的例如,the average of our wage is not very highwe have many books and we have an average of 35 books per person能体会吗? 展开全文阅读
