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题库 / Prep2012-CR-53
The technological conservatism of bicycle manufacturers is a reflection of the kinds of demand they are trying to meet. The only cyclists seriously interested in innovation and willing to pay for it are bicycle racers. Therefore, innovation in bicycle technology is limited by what authorities will accept as standard for purposes of competition in bicycle races.
Which of the following is an assumption made in drawing the conclusion above?
The market for cheap, traditional bicycles cannot expand unless the market for high-performance competition bicycles expands.
High-performance bicycles are likely to be improved more as a result of technological innovations developed in small workshops than as a result of technological innovations developed in major manufacturing concerns.
Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition.
The technological conservatism of bicycle manufacturers results primarily from their desire to manufacture a product that can be sold without being altered to suit different national markets.
The authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design.
E. 制定高性能单车竞赛的机构并不知晓单车设计的创新（错选E，首先知晓和按技术创新来定规则是两码事，其次就算机构按技术创新来定规则也不合结论，结论是创新受制于机构，自变量变量是机构，而这里变成，创新是自变量，因变量是机构。
A. 便宜和传统的单车不能扩大除非....（无关）B. 高性能单车将在小作坊还是制造厂更容易受到发展（无关）
C. 单车赛车员并没有对在官方认可的竞赛标准外的创新产生强烈需求，取非，赛车手的需求不受政府规定制约，那单车创新也不受政府规定制约。（正确，说明赛车手和机构的关系）D. 单车技术保守的原因是单车制造商想制造一个放之四海而皆准的产品（提出不创新的他因，如果单看结论，该选项可以削弱结论，但无法证明前提到结论的漏洞）
因果推理。前提：只有单车赛车员才对单车创新感兴趣并愿为之买单。结论：单车技术创新受制于机构将接受的单车竞赛的标准
前提到结论有三个量：赛车手，创新和机构。 前提是说赛车手和创新的关系，赛车手影响创新。 结论是 机构影响创新
正确的CQ应该是 赛车手和机构的关系。
问题（等价于）：以下选项哪个成立将会削弱结论？
不是削弱吧。
C说赛车手对那些官方不认可的创新技术没有需求，恰恰说明了赛车手所需求的就是官方认可的。即题目的结论。
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因果。