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备用免疫系统科学家研究发现,人体有备用免疫系统,当免疫系统在正常保护机制失效时,还有一套救援系统可以启用。智能塑料袋英国
Researchers from spare immune system have found that the human body has a backup immune system, and a rescue system can be activated when the immune system fails in the normal protection mechanism. Smart plastic bags UK