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Since the beginning of the year, the community medical clinic verified rigorously the potency of each flu vaccine sample, lest any of its patients are vulnerable to the flu.
  • Averified rigorously the potency of each flu vaccine sample, lest any of its patients are 分析该选项
  • Brigorously verified the potency of each flu vaccine sample, lest any of its patients would be 分析该选项
  • Cis rigorously verifying the potency of each flu vaccine sample, lest any of its patients not be 分析该选项
  • Drigorously has verified the potency of each flu vaccine sample, lest any of its patients are 分析该选项
  • Ehas verified rigorously the potency of each flu vaccine sample, lest any of its patients be 分析该选项
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正确答案: E

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