单选题A branch line valve of a fire extinguishing system on a ship must be marked with the（）.Amaximum pressure allowed at that branchBname of the space or spaces which it servesCdate of the last maintenance inspectionDpressure needed to maintain an effective stream at that point
单选题
A branch line valve of a fire extinguishing system on a ship must be marked with the（）.
A
maximum pressure allowed at that branch
B
name of the space or spaces which it serves
C
date of the last maintenance inspection
D
pressure needed to maintain an effective stream at that point
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