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Brazil opened a research station in 1984, but it was largely destroyed by a fire that killed two members of the navy in 2012, the same year that a diesel-laden Brazilian barge sank near the base.
2016年12月六级真题(第三套)阅读 Section B
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Now, Africa's largest economy is facing a food crisis as major tomato fields have been destroyed by an insect, leading to a nationwide shortage and escalating prices.
2017年12月六级真题(第一套)阅读 Section A
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The insect, Tutaabsoluta, has destroyed 80% of farms in Kaduna, Nigeria's largest tomato-producing state, leading the government there to declare a state of emergency.
2017年12月六级真题(第一套)阅读 Section A