A from one end.At this moment the distance of AB is 1/7 of the to_英语解答

A from one end.At this moment the distance of AB is 1/7 of the total length.啥意思
明天就要交,

人气：256 ℃　时间：2020-03-29 08:51:59

解答

然后从另一头标记A,此时AB线的距离是整个长度的1/7.