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TPO3 第二篇阅读 14题A选项求解 答的好额外有奖励

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TPO3 第二篇阅读 14题A选项求解 答的好额外有奖励
A选项The use of the Ogallala for irrigation has allowed the High Plains to become one of the most productive agricultural regions in the United States.其中的 most productive agricultural regions并没有在下面的文字中体现啊,那为什么还是对的呢?
The first wells were drilled into the Ogallala during the drought years of the early 1930s.The ensuing rapid expansion of irrigation agriculture,especially from the 1950s onward,transformed the economy of the region.More than 100,000 wells now tap the Ogallala.Modern irrigation devices,each capable of spraying 4.5 million liters of water a day,have produced a landscape dominated by geometric patterns of circular green islands of crops.Ogallala water has enabled the High Plains region to supply significant amounts of the cotton,sorghum,wheat,and corn grown in the United States.In addition,40 percent of American grain-fed beef cattle are fattened here.
短文中的倒数第二句里说了Ogallala水资源的开发让高原地区可以向整个美国供给大量的(significant amounts)棉花 高粱...(这些都属于农产品) 既然都可以大量的供给农产品了 自然就表明该地区的产量高了..而且A选项中说的是one of the most.是指农产品高产地区 " 之一 " ...所以这个句子就是对的 如果没有one of表示“之一”的意思 那么A 就是错的