2. 外语
  3. El Nino is a warm ocean current______. This passage is devoted to introduction to ______.

El Nino is a warm ocean current______. This passage is devoted to introduction to ______.

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问题 El Nino is a warm ocean current______.
This passage is devoted to introduction to ______.
选项 A、the causes and effects of El Nino weather phenomena
B、the worldwide monitoring network set up to predict El Nino
C、the relationship between the ocean temperatures and climate patterns
D、El Nino phenomena and destructive effects of one El Nino event on Ica
答案D
解析 主旨题。整篇文章主要分为两个邢分，前三段介绍了El Nino的形成及影响，后两段介绍了它对秘鲁的一个小镇Ica的破坏作用。文中只有第一段讲了El Nino现象产生的原因和影响，排除A。B、C两项文中没提到。
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大学英语四级

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