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题库 / Prep2007E2-SC-128
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
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A和D，they无指代；B选项里as well用得很莫名，其后undergo是谓语动词，没有并列的成分；E选项，“if intended for use both by...",不确定这种表达是否有误，虽然看起来很奇怪，但must和mandate赘余了。其实这个赘余也可以用来排除A、D、E选项，这样理解不知是否可以。
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