耐B-内酰胺酶青霉素。对青霉素耐药的菌株有效,尤其对耐药金黄色葡萄球菌有很强的杀菌作用,被被称为“抗葡萄球菌青霉素”的是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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