What should the person who discovers a fire do? He should operate the ______

游客2023-10-07  25

问题 What should the person who discovers a fire do?
   He should operate the ______ and attack the fire with available equipment, if it is safe to do so.
[br] What should those who are in the area where the fire alarm is not ringing do?
   They should continue ______ .

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