燃烧具有三要素,下列哪项不是发生燃烧的必要条件是()。A.可燃物质 B.助燃物质 C 发布时间:2017-07-25 12:37 │ 来源:www.tikuol.com 题型:单项选择题 问题: 燃烧具有三要素,下列哪项不是发生燃烧的必要条件是()。A.可燃物质B.助燃物质C.点火源D.明火
题型:单项选择题 Everything ()if Albert hadn't called the fire brigade.A.will be destroyedB.will have been destroyedC.would bedestroyedD.would have been destroyed 查看答案