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最佳答案：With the old people leading the way, we found the polluted river without any dif
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最佳答案：Hydrocarbon of degrading bacteria ultraviolet mutation breeding researchtheIn re
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最佳答案：In recent years, oil pollution is serious, how to fix the contaminated soil and
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最佳答案：In recent years, oil pollution is serious day by day, how the remediation of con
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最佳答案：The earth is our home,it provides us water,food and the enough space to live.How
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最佳答案：1.Have you been busy in studying recently?2.The treasure box has been hidden in
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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
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最佳答案：1）The villagers didn't realize how serious the pollution was until the fish in t
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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
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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