谢谢。是不是人体运动离不开氧，而血是人体输送氧的（唯一）工具？

来源: 清溢于 2018-04-13 19:38:58 [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.

Change Ad Consent