标题: OG12-28题求解 [打印本页]
作者: bastencool 时间: 2011-8-19 06:50 标题: OG12-28题求解
28. 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?
A. The market for cheap, traditional bicycles
cannot expand unless the market for high-
performance competition bicycles expands.
B. 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.
C. Bicycle racers do not generate a strong demand
for innovations that fall outside what is officially
recognized as standard for purposes of
competition.
D. 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.
E. The authorities who set standards for high-
performance bicycle racing do not keep
informed about innovative bicycle design
答案是C，看了解释，还不是很明白，有哪位大侠能解释一下思路吗，谢谢
作者: bradfordchen 时间: 2011-8-19 20:31
原文的意思是说：自行车制造商的技术守旧反映了他们设法去迎合的需求。真正对技术革新感兴趣且愿意为此支付费用的骑自行车的人只有自行车竞赛运动员。所以，自行车的技术革新只限于官方接受的以自行车竞赛为目的的标准。
前提：真正对技术革新感兴趣且愿意为此支付费用的骑自行车的人只有自行车竞赛运动员。
结论：自行车的技术革新只限于官方接受的以自行车竞赛为目的的标准。
问题：基于什么样的假设才能得出上述结论。
C选项：如果革新的标准官方不认可，自行车竞赛运动员就不会感兴趣。正好把前提和结论联系起来了。
作者: thinkingape 时间: 2011-8-26 06:31
同意楼上~说下我的理解
premise：真正对技术革新感兴趣并为其支付费用的只有racers.
conclusion：技术革新受限于官方认可的Standard.
找assumptions；
根据premise+assumption=conclusion,假设要把racers和standard 联系起来，
相当于架个桥梁，即：racers只对官方认可的standard的技术革新感兴趣。
其逆否命题就是，如果革新的Standard不受官方认可，racers就不会感兴趣，
就是C选项了。
作者: bastencool 时间: 2011-8-26 21:43
明白了，谢谢楼上2位了。顺便说下，是不是找assumptions的题都可以用premise+assumption=conclusion这个方法呢？
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