单选题Multiple fire pumps may be used for other purposes provided that one pump is().Aon line to the fire mainBkept available for use on the fire main at all timesCcapable of being connected to the fire mainDrated at or above 125 psi
单选题
Multiple fire pumps may be used for other purposes provided that one pump is().
A
on line to the fire main
B
kept available for use on the fire main at all times
C
capable of being connected to the fire main
D
rated at or above 125 psi
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