date back to 和 date from 区别

问题描述:

date back to 和 date from 区别
This custom_____the seventh century,but this church_____eight centuries,you know.
A dated back to;dated from
B dates back to;dates back
C dates from;dates back to
D dates back to;dating back
date back to 和 date from 区别

b
这里的date是动词.表示计算时间的开始
短语:date back to...“追溯到……”.主要强调back to (时间往回推)
date from “开始于……”. 强调from (从何时起)
表示追溯时通用
date back跟一段时间,表示向前追溯多久