Clean drinking water is a basic human ne..-阿摩線上測驗
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4F Cassidy Tung 高二上 (2015/02/08)
In the treatment section, we examine the ways in which both humans and nature pollute our water—and what can be done to clean it. C)The project examines the types of water management techniques in the treatment section (A)The project discusses the sources of water on Earth in the sources section The sources section reveals where water is found on Earth and how such areas can be protected. The kinds of sources available also determine the types of management techniques that can be used to make the most of every drop... 查看完整內容 |