【每日逻辑练习第二季】【1-13】

yuehuasunday

1.


Background:  High school students who feel that they are not
succeeding in high school often drop out before
Graduating and go to work.

Premise: Last year, the high school dropout rate was significantly lower than previous year

Conclusion: Program instituted two years ago to improve the morale of high school students has begun to take effect to reduce dropouts.

(A) Correct:  Causation

2.

Background: An overly centralized economy is responsible for the poor agricultural production.

Premise: Y experienced the same climatic

Conclusion: But Y is raising

(D) Correct

3.

Background: Generally scientists enter their field with the goal of doing important new research and accept as their colleagues those with similar motivation

Premise: when scientist wins renown as an expounder of science to general audiences

Conclusion: no longer be regarded as a true colleague.

(D)

4.

Background: A company's two divisions performed with remarkable consistency over the past three years:  

Premise: Pharmaceuticals division accounted for 20 percent of dollar sales

Conclusion: 40 Percent of profits

© Correct

5.

Background: The technological conservatism of bicycle manufacturers is a reflection of the kinds of demand they are trying to meet.

Premise: he only cyclists seriously interested in innovation and willing to pay for it are bicycle racers.  

Conclusion:  Therefore, innovation in bicycle technology is limited by what authorities will accept as standard for purposes of competition in bicycle races.

©

irenetopia

【精练】1:09
2. High school students who feel that they are not
succeeding in high school often drop out before
graduating and go to work. Last year, however, the
city’s high school dropout rate was significantly
lower than the previous year’s rate. This is
encouraging evidence that the program instituted
two years ago to improve the morale of high school
students has begun to take effect to reduce dropouts.
Which one of the following, if true about the last
year, most seriously weakens the argument?
----------Cause and Effect Problems NO.2
逻辑链：学生退学是因为找工作
今年退学率低了
是跟学校开始搞的一个激励项目有关
问削弱
思路：削弱就是退学率低跟项目无关，相关性不存在
前提提到了work
选项中一般都会有work

(A) There was a recession that caused a high level
of unemployment in the city.——bingo!因为经济萧条，失业率高，很多学生就找不到工作就继续上学呗，隔断相关性。
(B) The morale of students who dropped out of
high school had been low even before they
reached high school.——support
(C) As in the preceding year, more high school
students remained in school than dropped
out.——反驳前提？好吧排除
(D) High schools in the city established placement
offices to assist their graduates in obtaining
employment.——可能算是项目的一个具体实施，不相关
(E) The antidropout program was primarily aimed
at improving students’ morale in those high
school with the highest dropout rates.——同D，不相关

【逻辑链】
49.1:06
An overly centralized economy, not the changes in the climate, is responsible for the poor agricultural production in Country X since its new government came to power.  Neighboring Country Y has experienced the same climatic conditions, but while agricultural production has been falling in Country X, it has been rising in Country Y.
Which of the following, if true, would most weaken the argument above?

逻辑链：集中经济会影响X的农业（不是气候），因为它的新政府上台了。
Y的气候也没有变。
X的农业下降，Y的农业上升
问削弱：climate相同，找两个不同点
直接影响agriculture的

(A) Industrial production also is declining in Country X.——无关啊
(B) Whereas Country Y is landlocked, Country X has a major seaport.——没有直接影响
(C) Both Country X and Country Y have been experiencing drought conditions.——具体化前提，无关
(D) The crops that have always been grown in Country X are different from those that have always been grown in Country Y.——bingo！直接提到了有关于农产品的不同可能导致的不同结果
(E) Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods.——无关

50.1:43
Generally scientists enter their field with the goal of doing important new research and accept as their colleagues those with similar motivation.  Therefore, when any scientist wins renown as an expounder of science to general audiences, most other scientists conclude that this popularizer should no longer be regarded as a true colleague.
The explanation offered above for the low esteem in which scientific popularizers are held by research scientists assumes that
逻辑链：一般科学家进入领域进行研究同时也会接受和他们有相同动机的同事
因此对于一般获得声誉的科学家，其他科学家认为这个人不是真正的同事
问假设
同事工作——因为有相同的动机
获得声誉的人——不是同事
有个hole，即获得声誉的人没有相同动机
在选项之中找动机和荣誉的关系

(A) serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues——无关
(B) research scientists tend not to regard as colleagues those scientists whose renown they envy——嫉妒？好吧~~
(C) a scientist can become a famous popularizer without having completed any important research——无关
(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research——bingo！填补了漏洞，取非削弱原题
(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists ——没看懂……无关

51.40S
A company's two divisions performed with remarkable consistency over the past three years:  in each of those years, the pharmaceuticals division has accounted for roughly 20 percent of dollar sales and 40 percent of profits, and the chemicals division for the balance.
Which of the following can properly be inferred regarding the past three years from the statement above?
逻辑链：两个部门，P部门销售20%利润40%
C部门销售80%利润60%
问总结：
根据题意，不能出现新信息

(A) Total dollar sales for each of the company's divisions have remained roughly constant.——没说，没提到
(B) The pharmaceuticals division has faced stiffer competition in its markets than has the chemicals division.——反了哎，排除
(C) The chemicals division has realized lower profits per dollar of sales than has the pharmaceuticals division.——bingo！销售额大，利润低。
(D) The product mix offered by each of the company's divisions has remained unchanged.——无关
(E) Highly profitable products accounted for a higher percentage of the chemicals division's sales than of those of the pharmaceuticals division.——利润高不等于产品利润高high profitable product新信息

52. 2:05
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?
逻辑链：自行车的创新面临传统保守技术问题
唯一对这个创新感兴趣的是骑自行车的人
因此自行车的创新将会被限制于在自行车比赛中当局的标准
问假设
有个hole，自行车手和当局的关系
选项包含这个信息要注意

(A) The market for cheap, traditional bicycles cannot expand unless the market for high-performance competition bicycles expands.——cheap不cheap无关
(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.——无关
(C) Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition.——bingo！自行车手一般不会对创新强烈要求作为官方比赛标准。取非的话，如果是，自行车的创新将不会被限制了
(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.——无关，不是制造商渴望
(E) The authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design.——不管keep不keep，都会影响

goodluck22

Premise: program instituted two years ago -> reduce dropouts
Prephrase: other reasons reduce the dropout not program
A.        Correct
B.        Background
C.        Background
D.        Support
E.        Just some background


Conclusion: centralized economy is responsible for poor agricultural
Premise:  Y and X has same climate condition  but production  y>x
Prephrase: other reasons cause the production difference
A.        out of scope
B.        just some background
C.        support
D.        CORRECT
E.        BACKGROUND

Background: enter field doing important research and accept their the same motivation
Conclusion: who win -> will not regard as colleague
Prephrase: will not do research
A.        background
B.        reverse
C.        irrelevant
D.        correct
E.        background

Premise: PHAR SALES 20% PROFIT 60%
                   CHEMI SALES:80%  PROFIT:40%
Prephrase: chem sales more but profit is much lower
A.        CANNOT IFER
B.        DON’T KNOW
C.        CORRECT
D.        DON’T KNOW
E.        SUBSET DON’T KNOW

Premise: cyclists interested is bicycle racer
Conclusion : innovation is limited
Prephrase:
A.        irrelevant
B.        subgr0up
C.        Correct
D.        Irrelevant
E.        irrelevant

cyndichiang

精炼：
1. 36‘’
premise: last year,the city’s high school dropout rate was significantly lower than the previous year’s rate
conclusion:the program instituted two years ago to improve the morale of high school students has begun to take effect to reduce dropouts
Q:weaken(what happened last year)
prephrase: high school students should study more than 2 years to graduate
选项：A 果推因
(A) There was a recession that caused a high level
of unemployment in the city.---Correct, this evidence is another factor that can cause the declined drop rate.它因
(B) The morale of students who dropped out of
high school had been low even before they
reached high school.----opposite, this statement means that the program did take into effect
(C) As in the preceding year, more high school
students remained in school than dropped
out.-----irrelevant,对比的是前年和去年的drop rate，而不是对比留校和缀学的比例
(D) High schools in the city established placement
offices to assist their graduates in obtaining
employment.-----opposite:this statement actually strengthens the argument
(E) The antidropout program was primarily aimed
at improving students’ morale in those high
school with the highest dropout rates.-----irrelevant, it has nothing to do with the argument, because we don't know whether this school has the highest dropout rate;out of scope;

逻辑链：
2. 27‘’
premise: agriculture production decreased in country X when the new government came into power.
premise: X and Y has the same climate condition.
conclusion: An overly centralized economy, not the climate, is responsible for the poor agricultural production
Q:weaken
prephrase: though the climate is the same ,if there are some other differences between the two, the economy is not the only factor.

3. 37''
premise:Generally scientists accept their colleagues those with similar motivation.
premise:any scientist wins renown as an expounder of science to general audiences
conclusion: these renowned scientists are not regarded as true colleague
Q: Assumption:
prephrase: establish relationship: renowned scientists have different motivation from general scientists

4.27''
BG:A company's two divisions performed with remarkable consistency over the past three years
premise:the pharmaceuticals division had roughly 20 percent of dollar sales and 40 percent of profits, and the chemicals division for the balance
Conclusion:???
Q:must be true
prephrase: 20:40<20:20?  40:20 >20:20?
              

5. 44''
premise: only bike racers concern about the innovation and pay for it
premise: authorities have standard for purposes of competition in bicycle races
conclusion: innovation is limited
Q:Assumption
prephrase: establish relationship: racers must obey the standard
               deny a weaken stimulus: bike racers will not use the bike in areas except race

simonleo

1.
Time:59s
P:students who feel that they are not succeeding in high school often drop out to work
last year, the drop out rate was significantly lower that previous year's.
C:program that improve the morale of high school students has begun to take effect to reduce dropouts.
Pre:C-->E:program-->dropouts lower
(A) There was a recession that caused a high level
of unemployment in the city. 正解，他因削弱
(B) The morale of students who dropped out of
high school had been low even before they
reached high school. 不能削弱，正巧说明这起作用了
(C) As in the preceding year, more high school
students remained in school than dropped
out. 但是不能削弱减少的事实，与是不是那个cause也无关
(D) High schools in the city established placement
offices to assist their graduates in obtaining
employment. 不能削弱，没说没有帮助就找不到工作，那我还是可以辍学提前去找工作。且这项帮助也许之前就是有的。
(E) The antidropout program was primarily aimed
at improving students’ morale in those high
school with the highest dropout rates. 无关，不能削弱。

2. 32s D
3. 1:15 D
4. 34s C 这道题后来看选项思考了比较久，似乎之前理解题意理解错了 remarkable consitency over the past three years 是指两个部门各自的销量之类的连续三年保持不变，而不是两个部门的三年相等。 for the balance应该理解为剩下部分就是chemicals division account的了。。。 这么理解的情况下选择了C
5. 1:11s C

spencerchan

42’’
B: High school students who feel that they are not succeeding in high school often drop out before graduating and go to work
P: These year’s dropout rate is lower than last year’s
C: The program works
Prep: There are other causes to reduce dropout rate, the program is not the key cause
A: CORRECT
B: Irrelevant
C: Not strengthen, not weaken
D: Irrelevant
E: Irrelevant

37’’
B: The climate condition is same in country X and country Y
P: Country X’ production decline, country Y’s production increase
C: The reason is that the new government come to power
Prep: There are other causes => The crop is different?
A: Irrelevant
B: Irrelevant
C: Irrelevant
D: CORRECT
E: Irrelevant

54’’
B: Scientists entry their field with the goal of 1) doing important new research 2) accept as their colleagues those with same motivation
P: Those scientists expound science to general audiences
C: Those scientists are not a true colleague
Prep: They do not have the same motivation
A: Irrelevant
B: Irrelevant, do not mention “envy”
C: Does not means that the popularizer did not do any important researches
D: CORRECT
E: Irrelevant

30’’
B: The two divisions performed remarkable consistency over the past three years
P: P division accounted for 20% sales and 40% profit and the chemical division do the balance
Prep: C: ??
A: Not mention
B: It cannot be inferred
C: CORRECT
D: It cannot be inferred
E: Wrong

1’13’’
P: Only bicycle racers interested in bicycle innovation
C: The innovation based on the race standards
Prep: ??
A: Irrelevant
B: Irrelevant
C: CORRECT
D: Irrelevant
E: Irrelevant

三道题目以前做过，第一次全对 哈哈哈

MIA926

20150903 CR小分队-13
【精练】
2. High school students who feel that they are not
succeeding in high school often drop out before
graduating and go to work. Last year, however, the
city’s high school dropout rate was significantly
lower than the previous year’s rate. This is
encouraging evidence that the program instituted
two years ago to improve the morale of high school
students has begun to take effect to reduce dropouts.
Which one of the following, if true about the last
year, most seriously weakens the argument?
----------Cause and Effect Problems NO.2
计时：28.47s
逻辑链：去年退学率降低，就说是学校展开的打起的program起了作用，求削弱
推测：还要和去年的情况有关，很可能是因为比如来的人少了 或者是家长也进行了一些心理辅导，反正就不关学校的事就是了
(A) There was a recession that caused a high level
of unemployment in the city. 正确 因为找不到工作所以不辍学了
B) The morale of students who dropped out of
high school had been low even before they
reached high school. 无关
(C) As in the preceding year, more high school
students remained in school than dropped
out. 无关
(D) High schools in the city established placement
offices to assist their graduates in obtaining
employment. 无关
(E) The antidropout program was primarily aimed
at improving students’ morale in those high
school with the highest dropout rates. 无关

【逻辑链】
49.
An overly centralized economy, not the changes in the climate, is responsible for the poor agricultural production in Country X since its new government came to power.  Neighboring Country Y has experienced the same climatic conditions, but while agricultural production has been falling in Country X, it has been rising in Country Y.
Which of the following, if true, would most weaken the argument above?
逻辑链：X农作物产量下降，Y上升，就说是X的centralized economy的问题，而不是因为气候变化引起的
推测：GAP很多啊，两国对比的时候没有说明其他条件是否一致，很可能种的东西都不一样有什么好比的
(A) Industrial production also is declining in Country X. 加强
(B) Whereas Country Y is landlocked, Country X has a major seaport. 无关
(C) Both Country X and Country Y have been experiencing drought conditions. 加强
(D) The crops that have always been grown in Country X are different from those that have always been grown in Country Y. 正确
(E) Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods. 无关

50.
Generally scientists enter their field with the goal of doing important new research and accept as their colleagues those with similar motivation.  Therefore, when any scientist wins renown as an expounder of science to general audiences, most other scientists conclude that this popularizer should no longer be regarded as a true colleague.
逻辑链：科学家很傲娇 只把那些以doing important new research为目标的人看做自己的同事 对于有名望的人都是不屑一顾的
推测：不屑一顾是因为觉得他们的目标不同，道不同不相为谋…
The explanation offered above for the low esteem in which scientific popularizers are held by research scientists assumes that
(A) serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues无关
(B) research scientists tend not to regard as colleagues those scientists whose renown they envy 无关
(C) a scientist can become a famous popularizer without having completed any important research 无关
(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research 正确
(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists  无关

51.
A company's two divisions performed with remarkable consistency over the past three years:  in each of those years, the pharmaceuticals division has accounted for roughly 20 percent of dollar sales and 40 percent of profits, and the chemicals division for the balance.
逻辑链：P 0.2 sales 0.4 profit 2   C 0.8sales 0.6 profit 3/4
Which of the following can properly be inferred regarding the past three years from the statement above?
(A) Total dollar sales for each of the company's divisions have remained roughly constant. 新信息
(B) The pharmaceuticals division has faced stiffer competition in its markets than has the chemicals division. 新信息
(C) The chemicals division has realized lower profits per dollar of sales than has the pharmaceuticals division. 正确
(D) The product mix offered by each of the company's divisions has remained unchanged. 新信息
(E) Highly profitable products accounted for a higher percentage of the chemicals division's sales than of those of the pharmaceuticals division. 新信息


52.
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.
逻辑链：自行车生产商很保守，赛车手则是唯一会对创新感兴趣的人，所以政府会显著自行车行业的 创新，因为觉得这是为了竞争用的
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. 无关
(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. 无关
(C) Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition. 正确
(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.无关
(E) The authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design. 无关

fesche

high school students drop out if they do not perform good
last year drop out lower than previous year
C: strategy put 2 years ago on moral is effective to reduce drop out
weaken
lower in drop out is not because of the program
他因，可能是因为经济不好找不到工作
A
(A) There was a recession that caused a high level of unemployment in the city.
(B) The morale of students who dropped out of high school had been low even before they reached high school.  和现在无关
(C) As in the preceding year, more high school students remained in school than dropped out. 没有解释为什么drop out少了
(D) High schools in the city established placement offices to assist their graduates in obtaining employment. 和drop out during study无关
(E) The anti dropout program was primarily aimed at improving students’ morale in those high school with the highest dropout rates.  和现象无关

falling in agriculture in X is not because of climate but overly centralized economic
BG: climate is the same in X and in Y
P: overly centralized economic
C: poor production in agriculture in X
weaken
因：集中经济
果：农业产出少
Y也是集体经济
D
(A) Industrial production also is declining in Country X. 和工业无关
(B) Whereas Country Y is landlocked, Country X has a major seaport. 和港口无关
(C) Both Country X and Country Y have been experiencing drought conditions. 不能解释X和Y的农业产出的区别
(D) The crops that have always been grown in Country X are different from those that have always been grown in Country Y.
(E) Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods 和产出无关

scientists enter a new research team tend to do the same as other colleagues
when one gets popular, the other colleagues do not regard him as a true colleague
一个科学家成名，其他科学家觉得这种受欢迎不能成为一个真正的coworker
前提：要成名应该大家一齐成名
A-D
(A) serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues
(B) research scientists tend not to regard as colleagues those scientists whose renown they envy
(C) a scientist can become a famous popularizer without having completed any important research
(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research
(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists

P division 20% sales, 40% profit
C division 80% sales, 60% profit
P比C盈利高
C
A) Total dollar sales for each of the company's divisions have remained roughly constant. 不知道total几多
(B) The pharmaceuticals division has faced stiffer competition in its markets than has the chemicals division. 不知道竞争
(C) The chemicals division has realized lower profits per dollar of sales than has the pharmaceuticals division.
(D) The product mix offered by each of the company's divisions has remained unchanged. 不知道mix 的
(E) Highly profitable products accounted for a higher percentage of the chemicals division's sales than of those of the pharmaceuticals division. 不知道percentage

manufacture decision is reflection on cyclist
manufacture make innovation base on the demand or requirement of authorities
assumption
官方影响新单车的技术
C
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.

宋痂岛__

ADDCC

May97

T：27s
BG：High school students who feel that they are not succeeding in high school often drop out before graduating and go to work.
Ｐ：Last year, however, the city’s high school dropout rate was significantly lower than the previous year’s rate. Ｃ：This is encouraging evidence that the program instituted two years ago to improve the morale of high school students has begun to take effect to reduce dropouts.
Weaken：
(A) There was a recession that caused a high level of unemployment in the city.--->irreverent--->correct 另一个原因
(B) The morale of students who dropped out of high school had been low even before they reached high school.--->irrevrent
(C) As in the preceding year, more high school students remained in school than dropped out.--->support
(D) High schools in the city established placement offices to assist their graduates in obtaining employment.--->correct. 另一个原因这里只是说明dropout rate会提高，irreverent
(E) The antidropout program was primarily aimed at improving students’ morale in those high school with the highest dropout rates.--->support

T: 26s
C: An overly centralized economy, not the changes in the climate, is responsible for the poor agricultural production in Country X
P: since its new government came to power.  
P: Neighboring Country Y has experienced the same climatic conditions, but while agricultural production has been falling in Country X, it has been rising in Country Y.
Weaken: 1) X Y种的植物不同，受到天气影响不同; 2) the new government 并没有centralized economy
(A) Industrial production also is declining in Country X.--->不一定
(B) Whereas Country Y is landlocked, Country X has a major seaport.--->???BD选项比较纠结。。
(C) Both Country X and Country Y have been experiencing drought conditions.--->support
(D) The crops that have always been grown in Country X are different from those that have always been grown in Country Y.--->correct
(E) Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods.--->support

T: 26s
P: Generally scientists enter their field with the goal of doing important new research and accept as their colleagues those with similar motivation.  
C: Therefore, when any scientist wins renown as an expounder of science to general audiences, most other scientists conclude that this popularizer should no longer be regarded as a true colleague.
FA: research scientist的目的改变了
(A) serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues--->irreverent
(B) research scientists tend not to regard as colleagues those scientists whose renown they envy--->irreverent
(C) a scientist can become a famous popularizer without having completed any important research--->irreverent
(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research--->correct
(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists --->irreverent

T: 31s
A company's two divisions performed with remarkable consistency over the past three years:  in each of those years,
the pharmaceuticals division has accounted for roughly 20 percent of dollar sales and 40 percent of profits,
and the chemicals division for the balance.
Infer:
(A) Total dollar sales for each of the company's divisions have remained roughly constant.--->no
(B) The pharmaceuticals division has faced stiffer competition in its markets than has the chemicals division.--->no
(C) The chemicals division has realized lower profits per dollar of sales than has the pharmaceuticals division.--->correct
(D) The product mix offered by each of the company's divisions has remained unchanged.--->no
(E) Highly profitable products accounted for a higher percentage of the chemicals division's sales than of those of the pharmaceuticals division.--->no

T: 33s
P: The technological conservatism of bicycle manufacturers is a reflection of the kinds of demand they are trying to meet.  
P: The only cyclists seriously interested in innovation and willing to pay for it are bicycle racers.  
C: Therefore, innovation in bicycle technology is limited by what authorities will accept as standard for purposes of competition in bicycle races.
FA:
(A) The market for cheap, traditional bicycles cannot expand unless the market for high-performance competition bicycles expands.--->irreverent
(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.--->irreverent
(C) Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition.--->correct
(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.--->irreverent
(E) The authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design.--->irreverent