下图是人体防御外界病原体侵染的三道免疫防线的示意图其中� �表示免疫细胞�和�表示免疫分子 1人体免疫器官主要包括 2图中 Template




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tomski下图是人体防御外界病原体侵染的三道免疫防线的示意图其中� �表示免疫细胞�和�表示免疫分子 1人体免疫器官主要包括 coloring