2011年职称英语理工类C级补全短文考点精华

文章作者 100test 发表时间 2011:03:18 19:07:37
来源 100Test.Com百考试题网

　　Fire-Fighting Fabric
　　Each year thousands of people worldwide are killed or seriously injured by fires started in mattresses. 46 . To help prevent fires in crowded public spaces, E. I. Du Pont de Nemours