液化石油气在生产、储存、运输和使用过程中,可能发生泄漏,从而引起中毒、火灾或爆炸事故,因此,充装了液化石油气的储罐是危险 液化石油气在生产、储存、运输和使用过程中,可能发生泄漏,从而引起中毒、火灾或爆炸事故,因此,充装了液化石油气的储罐是危险源。( ) 分类:基础知识 题型:简答题 查看答案
If employees have any health problem, they should__________ If employees have any health problem, they should__________A. telephone the fact 分类:基础知识 题型:简答题 查看答案
Since five managers are going to give their reports, the mee Since five managers are going to give their reports, the meeting (last)_________ 分类:基础知识 题型:简答题 查看答案