单选题:飞机库泡沫枪的布置应满足飞机停放和维修区内任一点发生火灾时能同时得到两支泡沫枪保护,泡沫液连续供给时间不应小于(  )。

题目内容:
飞机库泡沫枪的布置应满足飞机停放和维修区内任一点发生火灾时能同时得到两支泡沫枪保护,泡沫液连续供给时间不应小于(  )。 A.10min
B.20min
C.30min
D.45min

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