粮食仓库仓内空间悬浮的粉尘，当达到一定的浓度，遇火源易发生爆炸（）
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扑救粮食仓库火灾可利用直流水的冲击作用迅速达到扑灭粮食的阴燃火灾（）
由于轻质油品具有热波特性和一定的含水率，燃烧时易出现沸溢、喷溅现象（）
You should not have driven that car with its brakes out of order. You _____ a serious
A. might have
B. might have had
C. should have
D. should have had
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