很多朋友希望加入数学科学竞赛微信群，再此统一回复：请先加我微信：DrKevinWang，或点进来扫描二维码

来源: DrKevin 于 2016-11-18 13:56:33 [博客] [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.