单选题:设有中央空调系统的多层办公综合楼,设有自动喷火灭水系统,其棚顶、墙面、地面装修材料燃烧性能等级最低应为( ) 题目分类:消防安全技术实务 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 设有中央空调系统的多层办公综合楼,设有自动喷火灭水系统,其棚顶、墙面、地面装修材料燃烧性能等级最低应为( ) A.A级,B1级,B1级 B.A级,B2级,B2级 C.B1级,B1级,B2级 D.B1级,B2级,B2级 参考答案: 答案解析:
We may have known someone for ten years and still know very We may have known someone for ten years and still know very little about him bec 分类:消防安全技术实务 题型:单选题 查看答案
Which of the following is TRUE according to the passage?____ Which of the following is TRUE according to the passage?___________A.Exceptional 分类:消防安全技术实务 题型:单选题 查看答案
It is not easy to learn English well, but if you___________, It is not easy to learn English well, but if you___________, you will succeed in 分类:消防安全技术实务 题型:单选题 查看答案
During the reading lesson, the teacher asked students to rea During the reading lesson, the teacher asked students to read a few ___________ 分类:消防安全技术实务 题型:单选题 查看答案
2012年,下列行业中,实际利用外资金额同比增加最少的是( )。 2012年,下列行业中,实际利用外资金额同比增加最少的是( )。 A.租赁和商务服务业 B.信息传输、软件和信息技术服务业 C.房地产业 D.科学研究和技术服 分类:消防安全技术实务 题型:单选题 查看答案