We didnt' do it since there isn't a good reason for it. Some sch

来源: lovehandle 于 2012-11-27 09:26:35 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (91 bytes)
回答: 谁家的宝宝做过铅含量血测 由 品轩 于 2012-11-27 08:13:30

mostly for liability reasons.  The tests may have a lot of false positve. 

请您先登陆，再发跟帖！