Renkun

This page lists questions and answers that were posted by visitors named Renkun.

Questions

The following questions were asked by visitors named Renkun.

Answers

The following answers were posted by visitors named Renkun.

设x为姐妹,y为兄弟 x=y x=2y -x=1=y -2=x=2y=1 所以兄弟x为4,姐妹y为3
6 years ago