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提问人:网友d*******1 发布时间:2023年1月15日 20:28
[单选题]

有一条Ф300mm的环状消防管道,管道内的水压力为20×104Pa,若火场上每辆消防车出2支水枪,每支水枪的流量为6、5L/s,则该管道上能停靠消防车的数量为多少辆。()

A.4 B.6 C.8 D.10

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