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【单选题】
美国食品和药物管理局(FDA)在市场中引入了新治疗药剂。新治疗药剂在提高美国人的健康保健方面起了非常关键的作用。那些在学院里和政府研究团体内的人的职责是从事长期的研究，以图发现新的治疗药剂，并对它们进行临床验证。而实验室里的新发现比较容易地转移到市场上是FDA的作用和职责。新的重要的治疗方法只有在转移之后才能有助于病人。下面哪一个陈述可从上述段落中推出?( )
A.
FDA有责任确保任何销售到市场上的治疗药剂在当时都处于受控状态。
B.
在新的治疗药剂到达市场之前，它们不能帮助病人。
C.
FDA应该更紧密地与研究者合作以确保治疗药剂的质量不会下降。
D.
如果一项新的医药发现已从实验室转移到市场上，那么它将有助于病人。
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B.
This means that a friend who is willing to be with you when you are happy is a true friend.
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达到B、E状态时，反应消耗的n(CH 3 COOH)＞n(HCl)
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