Paragraph 4______A. Are clinical trials safe?B. W

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Paragraph 4______

A. Are clinical trials safe?

B. What are clinical trials?

C. What should people know before participating in a clinical trial?

D. Who should consider clinical trials and why?

E. Where are clinical trials conducted?

F. Why are clinical trials done?

热搜:关于氨基酸代谢错误的论述是_________。

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  • 答案:C

    第四段主要讲人们参加临床试验前可以与有关医务人员充分讨论问题,了解试验的详情以及试验的利弊等。