a large number of birds是单数复数?the number of books呢?

问题描述:

a large number of birds是单数复数?the number of books呢?

a large number of birds是复数,表示有许多鸟,是复数.例句A number of birds are circling overhead.很多鸟在头顶上空盘旋.the number of books指的是书籍的数量,仅仅是一个数据,所以是单数,例如The number of books...