内环境稳态是神经调节、体液调节和免疫调节共同作用的结果,内环境稳态是神经调节、体液调节和免疫调节共同作用的结果,是人体进行正常生命活动的必要条件。请结合图解回答下面的问题:(图中A、B、C、D表示器官或细胞;①②③表示物质) 当H 1 N 1 病毒第二次进入机体时,首先对H1N1病毒及免疫作用的物质是(),对于侵入机体细胞内的病毒的清除则需要通过()来完成。
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