2. 外语
  3. The United States Food and Drug Administration(FDA)regulates the introduction of new therapeutic agents into the marketplace. Co

The United States Food and Drug Administration(FDA)regulates the introduction of new therapeutic agents into the marketplace. Co

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问题 The United States Food and Drug Administration(FDA)regulates the introduction of new therapeutic agents into the marketplace. Consequently, it plays a critical role in improving health care in the United States. While it is those in the academic and government research communities who engage in the long process of initial discovery and clinical testing of new therapeutic agents, it is the FDA’s role and responsibility to facilitate the transfer of new discoveries from the laboratory to the marketplace. Only after the transfer can important new therapies help patients. Which one of the following statements can be inferred from the passage?
选项 A、The FDA is responsible for ensuring that any therapeutic-agent that is marketed is then regulated.
B、Before new therapeutic agents reach the marketplace they do not help patients.
C、The research community is responsible for the excessively long testing period for new drugs, not the FDA.
D、The FDA should work more closely with researchers to ensure that the quality of therapeutic agents is maintained.
E、If a new medical discovery has been transferred from the laboratory to the marketplace, it will help patients.
答案B
解析 本题最后的结论是，只有在新药转移到市场上之后，它们才能有助于病人，也就是在新药转移到市场上是它们有助于病人的必要条件。离开了必要条件，结论肯定就不能成立。所以新药在转移到市场上之前，它们无法帮助病人，也即(B)为正确选项；(E)是比较容易误选的答案，它的主要错误是混淆了充分条件与必要条件，新的医药发现转移到市场只是它们有助于病人的必要条件，因此它们究竟是否有助于病人还要受其他条件的制约。(A)、(C)和(D)均不能从短文的论述中合理地推出，所以都是错误选项。
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