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Fire drill
描述
A fire drill is a method of practicing how a building would be evacuated in the event of a fire or other emergencies. In most cases, the building's existing fire alarm system is activated and the building is evacuated by means of the nearest available exit as if an emergency had actually occurred.
visit for course http://nautilusregister.org/nrmc/
visit for course http://nautilusregister.org/nrmc/
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