The federal rules aimed at protecting human subjects of medical experiments were established to ensure that patients must be warned of potential risks and an independent panel would evaluate the experiment before it was conducted.
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Amust be warned of potential risks and an independent panel would
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Bmust be warned of potential risks and that an independent panel
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Care warned about potential risks and that an independent panel
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Dwill be warned about potential risks and an independent panel would
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Ewould be warned of potential risks and that an independent panel would
分析该选项
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正确答案: E