燃油锅炉点火应根据油品黏度,调节燃油温度和锅炉送风量,并维持()的额定送风量。 A. 发布时间:2020-01-23 17:13 │ 来源:www.tikuol.com 题型:单项选择题 问题: 燃油锅炉点火应根据油品黏度,调节燃油温度和锅炉送风量,并维持()的额定送风量。A.20%B.30%C.40%D.50%
题型:单项选择题 — My spoken English is poor, what shall I do? — Join an English language club to practice and you'll it. [ ]A. be good at B. drop in C. deal with 查看答案