根据燃气燃烧前与空气混合情况0＜α’＜1时为（)燃烧器。

A、患病动物
B、疑似患病动物
C、健康动物
D、假定健康动物

A、对供冷供热管线进行保温 Making thermal insulation for cooling and heating pipelines
B、以矿产资源代替废金属资源生产金属材料 Producing metal materials with mineral resource instead of metal scrapes
C、长距离输送电力 Long distance transmission of electric power
D、尽多采用空调系统 Using air conditioning system as much as possible