多吃发酵食物就能适当补充维生素B12。

来源: betadine 于 2014-04-29 20:42:09 [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.