目的: 研究乳杆菌肽聚糖 ( PG ) 的抑瘤作用及其机制.Objective : To investigate the antitumor effect of lactobacillus peptidoglycan ( PG ) and explore its possible mechanisms.来源于土壤细菌的多肽抗生素(与杆菌肽类似).A polypeptide antibiotic, produced by the soil...
All were busily engaged, men at their ploughs , women at their looms.大家都很忙, 男的耕田, 女的织布.The factories no longer relied upon a mechanic to put together looms within the plant.工厂不再依靠机修工在车间里组装织机。The factory has twenty-five l...