应了那句老话,科学是没有国界的,科学家却是有国界的.为丁教授点赞.

来源: whoSays 于 2015-03-03 08:59:48 [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.