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| 51. | The data obtaining form statistical sources is used to analyze the spatial-temporal change of cultivated land and driving forces by using relevance analysis, principal component analysis and regression analysis. |
| 结果表明：鄂南丘陵山区耕地总体上呈下降趋势，北部平原丘陵地区下降快，南部丘陵山区下降慢；近10年来，鄂南贫困丘陵山区耕地资源变化主要受经济因子、人口、房地产政策及耕地开发强度的影响。 |
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| 52. | Many of the mountain, plateau, hilly and basin areas are unsuited for living. |
| 中国的不少山地、高原、丘陵和盆地是不适宜人居住的。 |
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| 53. | These great earth-works were connected with rifle pits and they ran, mile after mile, completely encircling the city. |
| 这些连结着散兵壕的大型泥土工事一英里又一英里绵亘着，把整个城市围起来了。 |
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| 54. | These are griffons, similar to those that circle the skies |
| 这些就是狮鹫 与那些在丘陵下的印第安部落.. |
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| 55. | International Workshop on Evolution of Hills and Mountain Farming Systems: Sustainable Development Policy Implications |
| 丘陵和山地耕作制度的演变国际讲习班: 可持续发展所涉政策问题 |
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| 56. | Weather systems associated with air masses are usually several hundred to a thousand or miles arcoss and move from west to east. |
| 天气体系和与之有关的气团，常常绵亘几百到几千英里，并自西向东移动。 |
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| 57. | Habitat and ecology: In forests on hills. Flowering: May; Fruiting: Oct. |
| 生境与生态：生于山地丘陵林中。花期：5月；果期：10月。 |
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| 58. | The trailwalkers have to walk through eight country parks and over twenty hills and mountains. |
| 毅行者不得不走过八个国家公园和越过二十座丘陵和山脉。 |
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| 59. | Thomas Jefferson built his home in the rolling hills of his native Virginia. |
| 杰弗逊把家安在了家乡弗吉尼亚延绵的丘陵上。 |
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| -- 来源 -- 综合英语第4册 - Unit 8 Internet and Communication Text A |
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| 60. | The point on the opposite side of Mercury from the Caloris Basis is marked with thousands of hills. |
| 在水星的另一面和卡路里相对的地点遍布着成千上万的丘陵。 |
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