题目选项分析

A Food and Drug Administration rule implemented in December 2000 mandates that any new drug intended for use by both adults and children undergo pediatric study and that its manufacturers list children's doses on the label.

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.