嗯, 那是我记错了, 只是涉及了农工商矿, 没有涉及具体学科知识.

来源: 叶泥泥于 2010-06-28 20:52:04 [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.