关于被动语态家庭规则的英语作文

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第1个回答  2014-12-02
The study of oil spills and their effects on the environment gives similar guidance on how to avoid or at least minimize the damage of an oil spill on the environment. The study of the disintegration of the ozone layer over the poles of the earth has given birth to new laws and regulations on certain chemicals that help to preserve this valuable part of our atmosphere. All of these examples of studying history provide value far beyond its impact on the daily lives of people.本回答被网友采纳
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