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[主观题]
PS150固定式消防水炮额定工作压力______。A.1.OMPaB.1.2MPaC.1.4MPaD.1.6MPa
PS150固定式消防水炮额定工作压力______。
A.1.OMPa
B.1.2MPa
C.1.4MPa
D.1.6MPa
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PS150固定式消防水炮额定工作压力______。
A.1.OMPa
B.1.2MPa
C.1.4MPa
D.1.6MPa
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