单项选择题
A．炉膛爆炸 B．物料间失火 C．厨房失火 D．货舱失火爆炸
A．Ⅰ+Ⅱ+Ⅴ+Ⅵ B．Ⅰ+Ⅱ+Ⅲ+Ⅴ+Ⅵ C．Ⅰ+Ⅱ+Ⅲ+Ⅳ+Ⅵ D．Ⅰ+Ⅱ+Ⅳ+Ⅴ+Ⅵ
A．0.03～0.05MPa/0.1～0.5MPa B．0.3～0.5MPa/0.01～0.05MPa C．0.01～0.05MPa/0.3～0.5MPa D．0.1～0.5MPa/0.03～0.05MPa