题目

阅读下面短文，从短文后各题所给的四个选项中选出可以填入空白处的最佳选项。 A good dictionary is 1importanttool(工具). It will tell you2 only what a word means but3howit 4. A dictionary needs to be printed againabout every ten years. Languages develop(发展)and a good dictionary must5thesenew changes. A new English dictionary will only tell you6mostpeople use the language today. It won't tell you what is right 7wrong.It may tell you the right time to use a word. If only 8 people use a word, a dictionary will9 tell you this or not list(编列) it. 10 dictiona下列做法中对保护大气、改善环境状况没有帮助的是A.使用清洁能源B.将工厂的烟囱建高C.植树造林D.工厂的废气经净化后排放