{{B}}Egypt Felled by
Famine{{/B}} Even ancient Egypt’s mighty pyramid builders were powerless in the face of the famine that helped bring down their civilisation around 2180 BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometres to the south was ultimately to blame--and the same or worse could happen today. The ancient Egyptians depended on the Nile’s annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods. Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablise the soil. When rain did fall it would have washed large mounts of soil into the Blue Nile and into Egypt, along with sediment from the A. "frustrating" B. "damaging". C. "defeating". D. "worrying". 更多"{{B}}第三篇{{/B}}"的相关试题: [单项选择]一本书内有三篇文章,第一篇文章的页数分别是第二篇页数和第三篇页数的2倍和3倍,已知第三篇比第二篇少10页,则这本书共有()。
A. 100页 B. 105页 C. 110页 D. 120页 E. 以上结果均不正确 [单项选择]{{B}}第三篇{{/B}}
|