与"natural passive immunity"相近的词条

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• natural ovulation
• natural ox gallstone
• natural pacemaker
• natural parent
• natural parthenogenesis
• natural passive immunity、natural-passive immunity
• Natural penicillin
• natural perfume
• natural period
• natural phenomena of omeridians
• natural philosophy
• natural pigment
• natural plant poison
• natural polymer
• natural polymerization
• natural population

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