我国实验室认可程序分为三个阶段:_______、_______、_______。
病原菌侵人机体致病与否取决于() ["A.细菌的毒力","B.细菌的侵袭力","C.机体的免疫力","D.细菌的毒素与侵袭力","E.细菌的毒力和机体的免疫力"]
胞内菌感染的特点是() ["A.骤然起病","B.细胞毒性高","C.产生内毒素及外毒素致病","D.病程短","E.病灶呈肉芽肿病变特征"]
大跨越档距的测量,通常采用()。 ["电磁波测距法","激光测距法","三角测量法","水平测距法"]
研究肠道菌丛常用动物模型是() ["A.悉生动物","B.无菌动物","C.无特殊病原体动物","D.清洁动物","E.普通动物"]
编制质量管理体系文件的一般要求是:_______、_______、_______、_______。