【OG24-644题】Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage. Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones. Accordingly, for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer. However, since consumer demand for grains, fruits and vegetables grown without the use of pesticides continues to rise, the use of genetically engineered seeds of this kind is likely to become widespreadIn the argument given, the two portions in boldface play which of the following roles?_mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

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Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage. Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones. Accordingly, for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer. However, since consumer demand for grains, fruits and vegetables grown without the use of pesticides continues to rise, the use of genetically engineered seeds of this kind is likely to become widespread

In the argument given, the two portions in boldface play which of the following roles?

The first supplies a context for the argument; the second is the arguments main conclusion The first introduces a development that the argument predicts will have a certain outcome, the second is a state of affairs that, according to the argument contributes to bringing about that outcome The first presents a development that the argument Predicts will have a certain outcome, the second acknowledges a consideration that tends to weigh against that prediction The first provides evidence to support a prediction that the argument seeks to defend; the second is that prediction The first and the second each provide evidence to support the arguments main conclusion

正确答案： C

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题干翻译
一些转基因种子能减少农药损害。不幸的是，种子本身相当昂贵，并且这些植物比正常植物需要更多肥料和水才能长得好。相应地，对于大多数农民来说，农药方面的节省无法弥补更高的种子成本和额外肥料成本。然而，由于消费者对不使用农药种植的谷物、水果和蔬菜的需求持续上升，这种转基因种子的使用可能会广泛传播。 逻辑链
1. 种子贵等（costly seeds等） 2. 需求上升（demand rise） 3. 广泛使用（widespread use） 问题类型
句子作用题 推理过程
论点是转基因种子使用可能广泛传播。第一个加粗部分指出种子昂贵等问题，这与广泛使用的预测相矛盾；第二个加粗部分表明消费者需求上升，这是有利于广泛使用这一预测的因素。 选项分析
A选项：第一个不是背景，第二个也不是主要结论，错误。 B选项：第一个不是会带来特定结果的发展，第二个也不是促成该结果的事务状态，错误。 C选项：第一个呈现了与预测相悖的情况，第二个承认了有利于预测的因素，正确。 D选项：第一个不是支持预测的证据，错误。 E选项：第一个不是支持主要结论的证据，错误。

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