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| One World | |
| 作者姓名： | 程永健 |
| 作者单位： | 安徽省休宁海阳中学 |
| 摘 要： | In another 250 million years, Americans will be able to drive to Africa. By that time, Earth's seven continents will have merged(?) into one supercontinent, predicts Christopher Scotese, a geologist at the University of Texas at Arlington. It won't be the first time the continents have gotten-together; about the same amount of time |
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