问题描述:
英语翻译
a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters
a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters
问题解答:
我来补答展开全文阅读