知识问答
最佳答案：they are busy preparing for the tirp.The problem is how we can get water not be
最佳答案：With the old people leading the way, we found the polluted river without any dif
最佳答案：Abstract:Since long-time,The point source pollution continuously receives from a
最佳答案：In recent years, oil pollution is serious, how to fix the contaminated soil and
最佳答案：In recent years, oil pollution is serious day by day, how the remediation of con
最佳答案：Hydrocarbon of degrading bacteria ultraviolet mutation breeding researchtheIn re
最佳答案：The earth is our home,it provides us water,food and the enough space to live.How
最佳答案：1）The villagers didn't realize how serious the pollution was until the fish in t
最佳答案：1.Have you been busy in studying recently?2.The treasure box has been hidden in
最佳答案：1.大量的树木被砍伐,森林越来越少：A lot of trees will be cut down, and the forest less and less
最佳答案：Many trees are cut down every daythe enviorment gets worse and worse.many animal
最佳答案：随着石油危机和环境污染的日益加剧,车用替代燃料的研究与开发越来越被重视.生物柴油作为一种新型可再生的生物质能源,具有和石化石油相近的特性,可在不改变发动机的结构
最佳答案：1.The environmental protection is very important2.Know to all.Have no water or a
最佳答案：1.他停止了呼吸,我们必须给他进行急救.译：He has stopped breathing,and we should take the first-aid
