不懂物理的数学家，面积和长度都搞不清，呵呵

来源: yasas 于 2013-08-16 18:23:43 [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.