题目内容：
紫外线灯管消毒，应从灯亮后几分钟开始计时
A．1～3分钟 B．3～5分钟
C．5～7分钟
D．7～9分钟
E．9～11分钟
参考答案：
答案解析：
单选题：紫外线灯管消毒，应从灯亮后几分钟开始计时
- 题目分类：专业实务
- 题目类型：单选题
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B．3～5分钟
C．5～7分钟
D．7～9分钟
E．9～11分钟
B．3～5分钟
C．5～7分钟
D．7～9分钟
E．9～11分钟
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