单项选择题

《建筑消防安全检测评价技术规程》规定,水喷雾灭火系统的工作压力,当用于灭火时不应小于(),用于防火冷却时不应小于()

A.0.1MPa,0.2MPa
B.0.2MPa,0.35MPa
C.0.35MPa,0.2MPa
D.0.2MPa,0.5MPa