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临床上常常采取两种或两种以上的抗生素联合给药方式,以扩大抗菌谱和防止细菌产生耐药性。在治疗严重感染和免疫功能缺
Clinically often take two or more antibiotics combined mode of administration to expand antibacterial spectrum and prevent bacterial resistance. In the treatment of severe infection and lack of immune function