继续他们仔细的测试后，医生检查了药物对其的影响，并与所有已知a型病毒的分组进行了对比，没有任何相同之处。
Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. None of them gave any protection.
继续他们仔细的测试后，医生检查了药物对其的影响，并与所有已知a型病毒的分组进行了对比，没有任何相同之处。
Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. None of them gave any protection.
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