As for a oil-fired boiler too much air would indicated by （）.
A:yellowish flame
B:golden yellow flame
C:milky flame
D:brilliant white flame
出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10250343】个 (题库试题定时更新)