室内消火栓是室内管网向火场供水的室内固定消防设施,它包括消火栓箱、消火栓、水枪、水龙头、水龙带借口、自救卷盘、挂架、消防按钮等。 ( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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