不但对矿区熟，对大学，研究机构，也有深刻瞭解。赞！

来源: lovecat08 于 2023-02-28 14:05:43 [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.