应该是海洋环境里来的，以前看到报道的含铅的钙片很多是oyster shell做的

来源: rancho2008 于 2018-11-30 14:34:06 [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.