下图中的喷嘴是哪个系统使用的喷嘴?() A.湿式自动喷水灭火系统 B.细水雾自动喷水 发布时间:2020-01-28 10:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下图中的喷嘴是哪个系统使用的喷嘴?()A.湿式自动喷水灭火系统B.细水雾自动喷水灭火系统C.干式自动喷水灭火系统D.气体灭火系统
题型:单项选择题 If you ________ at school, you _______ a college student now.A.had studied hard; would have beenB.should have studied hard; should have beenC.had studied hard; would beD.would study hard; must have been 查看答案