数学是有点拉后腿，跟着学校课程上的BC今年才学。

来源: love1111 于 2024-10-01 11:07:51 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.