高中英语题record number of books? record number of books were sold,up7.2% from ? year earlier用a或the填,求解释呵呵

高中英语题record number of books? record number of books were sold,up7.2% from ? year earlier用a或the填,求解释呵呵
高中英语题record number of books
? record number of books were sold,up7.2% from ? year earlier
用a或the填,求解释呵呵

高中英语题record number of books? record number of books were sold,up7.2% from ? year earlier用a或the填,求解释呵呵
答案：a,a
翻译：书籍以一个创纪录的销量售出,（销量）比一年前高出7.2个百分点.
1.第一空中含有一个固定短语：a number of...,意思是“多少数量的书”.
只不过中间用了record修饰了名词number,即：创销售记录销量的书籍
2.a year earlier = one year earlier 一年前
a指数量,等于one.
文章并没有指出具体哪一年,所以不能填定冠词the.