第一道防线和第二道防线是人生来就有的因为对多种病原体多种病原体都有防御作用所以叫做非特异性免疫非特异性免疫又称为先天性免疫先天性免疫 Template




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tomski第一道防线和第二道防线是人生来就有的因为对多种病原体多种病原体都有防御作用所以叫做非特异性免疫非特异性免疫又称为先天性免疫先天性免疫 coloring