[问答题] 能燃烧的液体火灾根据其火灾危险性如何分类？

消防车按底盘承载能力如何分类？ 心房与心室之间动作电位传导发生功能性延迟的部位是 ["希氏束","房室结","左、右束支","窦房结","结间束"] 每搏量占心室舒张末期容积的百分比称为 ["心脏指数","每搏量","心排出量","射血分数","体表面积"] 正常人V5、V6导联不应出现的QRS波形是 ["qR波","qRs波","QS波","R波","Rs波"] 燃烧产物对灭火工作有利的方面有哪些？ 能燃烧的液体火灾根据其火灾危险性如何分类？