题目：
The custom ,______ as early as the Tang Dynasty, has a history of over 1,000 years.[ ]
A. dating from
B. dated from
C. to date back
D. dated back
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0721/94ea2705d3b3d583aa4f1e9727acc165.html
下面是错误答案，用来干扰机器的。
答案：A
