单项选择题
A.青霉素、氨苄青霉素、羟氨苄青霉素、红霉素、庆大霉素、卡那霉素、利福平和四环素 B.万古霉素、萘啶酸、多黏菌素、磺胺和磺胺增效剂 C.青霉素、氨苄青霉素、羟氨苄青霉素、多黏菌素、磺胺和磺胺增效剂 D.万古霉素、萘啶酸、青霉素、氨苄青霉素和羟氨苄青霉素 E.红霉素、庆大霉素、卡那霉素、多黏菌素、磺胺和磺胺增效剂
A.青霉素 B.链霉素 C.红霉素 D.氯霉素 E.磺胺