Disinfection & Safety第 9 / 100 题
A disinfectant solution in a jar should be changed:
a.Once a year
b.Only when it runs out
c.Never, as long as it looks clear
d.When it becomes visibly dirty or cloudy, as directed by the manufacturer, and at least daily in many products
解析
Used disinfectant becomes contaminated with debris that reduces its effectiveness. It must be discarded and replaced when it appears dirty or cloudy, and most labels require fresh solution at least once each day.
法律依据: CCR Title 16 §979免费刷完整 100 道题库 — 无需注册。
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