Though sea water is the best mode of fighting fire, the main emergency fire fighting system can only be used on fires of ________.
举一反三
- The fire water system in residential buildings and shopping malls is similar to that on ships, but the difference is that the fire-fighting water on land is generally fresh water provided by the tap water network, and the fire-fighting water on ships is generally sea water provided by_____. A: fire pump B: emergency fire pump C: daily water pump D: A or B
- Fighting a fire in the galley poses the additional threat of（）.
- In the emergency alarm signals, if the alarm or whistle two long sounds followed by one short sound for 1 minute, it is the （） emergency. A: fire fighting B: leakage blocking C: abandon ship D: integratio
- How can one make an emergency rescue signal by fire
- Why can water put out a fire