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  3. One of the first _______ of reduced burning in Amazon rain forests was the chestnut industry: smoke tends to drive out the insec

One of the first _______ of reduced burning in Amazon rain forests was the chestnut industry: smoke tends to drive out the insec

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问题 One of the first _______ of reduced burning in Amazon rain forests was the chestnut industry: smoke tends to drive out the insect that by pollinating chestnut tree, allow chestnuts to develop.
选项 A、reformers
B、discoveries
C、casualties
D、critics
E、beneficiaries
答案E
解析 - 方程等号：冒号说明前后句意同义重复。
- 强词和对应：冒号后面说，昆虫通过授粉让栗子树生长，证明这些昆虫对栗子树有好处。而烟会驱赶这些昆虫，因此烟对这些昆虫产生负面作用。buming和smoke同义重复。根据题意，减少(reduced)烟雾即“减少”烟雾驱赶昆虫的几率，因此会增加昆虫对栗子树的授粉概率，空格和develop构成同义重复，体现减少燃烧的“积极的”作用，填入正向词。reformer改革者，discovery发现，casualty受害者，critic批判者，beneficiary受益人。答案选E。
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