问题
单项选择题
What is the most vulnerable part of the fire main system on board an offshore rig?（）
A.The fire pump
B.Exposed hard piping
C.The hydrant valve
D.The fire hose
答案
参考答案：D
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What is the most vulnerable part of the fire main system on board an offshore rig?（）
A.The fire pump
B.Exposed hard piping
C.The hydrant valve
D.The fire hose
参考答案：D