【每日逻辑练习第二季】【1-13】

balapupu

1.[23s]
P: Students who feel that they can not success in the high school will drop out and work?Last year, the school drop out rate decrease?C: this suggest that the measurement to improve the students moral standard has effect.
Weaken: because the bad economic, students drop out school can not find job so they stay at school.
A:
(A) There was a recession that caused a high level
of unemployment in the city.-->R
(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.-->irrelevant comparison.
(D) High schools in the city established placement
offices to assist their graduates in obtaining
employment.-->support
(E) The anti dropout program was primarily aimed
at improving students’ morale in those high
school with the highest dropout rates.-->support

balapupu

逻辑链：
1.[18s]
P: the neighbor country Y has the same climate with the X, however the agriculture in Y increase while X decrease.
C: Over centralized economy lead to the poor agriculture of X.
Weaken: the soil of the agriculture in two different is different..
A:
(A)    Industrial production also is declining in Country X.-->irrelevant with other industry
(B) Whereas Country Y is landlocked, Country X has a major seaport.-->irrelevant with the kinds of the city
(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.-->R
(E) Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods.-->irrelevant.
2.[17s]
P: Scientists enter the field with goal of doing important new research and accept the college with the same motivation?if some scientists win the renown?it is thought that they are not true college.
Assumption: true college did not work for win the renown.
A:
(A)    serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues?irrelevant wit the serious
(B) research scientists tend not to regard as colleagues those scientists whose renown they envy?no mention about the envy.
(C) a scientist can become a famous popularizer without having completed any important research-?not mention.
(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research?R
(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists ?irrelevant with the people not scientists.

3.数字比例关系，做过了。
4.【15s】
P：the technology of the bicycle reflect the consumer needs?the only consumer interested in the innovation of the bicycle is the racers?so the innovation technology fill into the standard of competition purpose.
Assumption: racers have no purpose without the competition.
A:
(A) The market for cheap, traditional bicycles cannot expand unless the market for high-performance competition bicycles expands.-->irrelevant with the 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.-->irrelevant with the factory size.
(C) Bicycle racers do not generate a strong demand for innovations that fall outside what is officially recognized as standard for purposes of competition.-->R
(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.-->not mention in the passage.
(E) The authorities who set standards for high-performance bicycle racing do not keep informed about innovative bicycle design?irrelevant with the information.