打开App
360P
（九年级）轮对称高次方程组，初看无从下手，换元法即可
巧解二元一次方程组10法2/16
App07:15
App06:33
App05:16
App05:22
App04:12
App03:13
App04:09
App04:26
App02:59
App05:12
App04:45
App02:54
App04:03
App03:23
App03:40
App04:16App07:15App06:33App05:16App05:22App04:12App03:13App04:09App04:26App02:59App05:12App04:45App02:54App04:03App03:23App03:40App04:16
