原文:
only 20 percent lived in towns and cities of 2500 or more, the census definition of an urban area after 1880.
問題: Accroding to the passage, which of the following was the census definition of an urban area after 1880?
答案: C : A town or city with population of at least 2500
原文看起來不是說 有百分之20的人住在 town and city..??
可不可以解釋一下...........thanks!
看不是很懂..要猜答案是可以猜得到.....