简述防止易燃气体着火的措施。
参考答案:
设置挡火板(网)、测爆仪;禁止在非吸烟场所吸烟;禁止明火作业;电器应防爆,电线保护等。
单词拼写(共10 小题;每小题1分,满分10分)
小题1:_________ (星期四)is the day of the week after Wednesday and before Friday.
小题2:The article has been_________ (删除) before I could read.
小题3: He knows nothing about our new plan because he has been ___ (缺席) from work for days.
小题4:She always ________ (抱怨 ) about her husband.
小题5:We’re looking forward to _________ (收到)your reply as soon as possible.
小题6:Girls and boys should be treated _________ (平等地) in seeking employment.
小题7:The building was_______(毁坏)in the war, and it was rebuilt in 1960.
小题8:The custom has been kept up for ______ (十年).
小题9:He is lucky to win a_______(奖学金)to study further at Stanford.
小题10: Measures have been taken to clean the _________ (受污染的) rivers.
如何计算墙、柱、天棚面喷(刷)涂料工程量?