A Food and Drug Administration rule implemented in December 2000 mandates that any new drug that they intend to be used both by adults and children must undergo pediatric study and that its manufacturers list children's doses on the label.
drug that they intend to be used both by adults and children must
drug whose intended use is for adults and children as well
drug intended for use by both adults and children
drug, if they intend that it be used by adults and also children, must
drug, if intended for use both by adults and children, must
依靠结构差异带来语意差异。首先排除d e 因为if状语描述的句子,这个动作,所以错误,这里描述的是drug的特点的;
登录 或 注册 后可以参加讨论