Blocking open or removing fire dampers can cause（）.<br>A:fixed foam systems to be ineffective<br>B:faster cooling of the fire<br>C:the accumulation of explosive gases<br>D:the fire to spread through the ventilation system

Blocking open or removing fire dampers can cause（）.
A:fixed foam systems to be ineffective
B:faster cooling of the fire
C:the accumulation of explosive gases
D:the fire to spread through the ventilation system

出自：海船船员证

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