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问题描述：

[单选] 下列β-内酰胺类抗生素药物半衰期最长的是（）
A．青霉素 B．头孢唑林 C．头孢呋辛 D．头孢曲松
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上一篇：没有了 下一篇：根据卫生部“38号文”规定，应严格控制以下（）药物作为外科围手术期预防用药

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