【每日逻辑练习第二季】【1-20】

pennyz

2:38s
explain
e---deny the premise
a
background:with snow has algae/algae more---if enough sunlight and enough water
premise:more snow less sunlight
phenomenon:more algea in snow than less snow
rephrase: too much light in less snow
         think about seawater
A) As the weight of accumulated snow forces ice lower in the water, more seawater splashes onto the surface and seeps through the snow.-----correct
(B) Seawater in the Antarctic often contains higher concentrations of nutrients than does seawater in more temperate regions.-------irrelevant
(C) As the air temperature around sea ice decreases during the winter, the likelihood decreases that snow will fall and thus add to any existing snow cover.----irrelevant
(D) The nutrients on which algae rely are common in seawater throughout the Antarctic.--irrelevant
(E) More sunlight filters through a layer of ice than through an equally thick layer of snow.
---contradict with the premise
1:30s conclusion's premise
e
background:g/r both provide medical care
g provide c,because c not treated will cost more later
premise:?
conclusion:r won't give c to employer
rephrase:employer of c will not stay that long
?
3:42s
conclusion
d
premise:two :lumber wc
       wc cost same on logging place and factory
       but wc occupy less space
conclusion:?
          better retain wc than lumber
(A) Converting the branches into wood chips at the logging site would require transporting a fully assembled wood-chipping machine to and from the site.-------
(B) It would be more economical to debranch the trees at the factory where the fiberboard is manufactured.--------
(C) The debranching of trees and the conversion of the branches into chips are the only stages in the processing of branches that it would be in United's economic advantage to perform at the logging site.
(D) Transportation costs from the logging site to the factory that are determined by volume of cargo would be lower if the conversion into chips is done at the logging site rather than at the factory.
(E) In the wood-processing industry, branches are used only for the production of wood chips for fiberboard.


2:15s
e
background: stagnant environment& restriction prohibite the new oil field
           old field depleted---->less exportion
premise: better economic situation and remove of restriction
conclusion:can not cause more export
rephrase: new field may not have so much oil as the old one
         the need for oil outboard may not increase

kid381

7/15/13
1-20
196 26’’
At most place, diamond are certified by the person selling you the necklace, so you do not expect fair evaluation, but one jewelry store, X, gives you a paper-based certify, so you can trust X.
Strengthen: X will be accused of defraud if they evaluate the jewelry unfairly (obviously E).
197 45’’
One kind of algae lives in the ice sheets floated on the surface of the sea, two requirements for its living: sunshine and nutrients. Though the moderate snow reduces the sunshine, the algae still lives well. Why?
Explain why: moderate snow make the algae obtain more seawater, which contains nutrients (A)
198 21’’
G and R both provide health care for the employees. Garnet pays for tests of cholesterol and treatment of cholesterol. R does not have the incentive. Why?
Employee of R typically leaves R after working for several years (E).
199 45’’
UL cut trees for two products: trunk for lumber and branches into wood chips to make fiberboard. The conversion cost the same in different place. However, more than half of chips are not made in the cutting place.
Conclusion: the transportation costs of trunks are higher than the cost of branches (D).
200 45’’
Utrania is a big oil exporter, these years since stricter regulation, the new oil excavation is limited and the old oil well depletes, so the export of Utrania declines. But even though Utrania can excavate new oil well, it is premature to say that Ultrania will have more oil exportation.
Explain why: the cost of oil excavation enhances, so Ultrania cannot export as much as oil as they did in the past (B. B explains that the internal demand is increasing).
呼呼，终于练完了，上考场去吧~

Elisha728

8'54''
EAEDB

ALL CORRECT

lyrsilvia

E AEDB
1. 26'
BG:  the person assessing the diamond is the person selling it so you can see why an assessor might say that a diamond is of higher quality than it really is.
P: all diamonds sold at Gem World are certified in writing
C:  you’re assured of a fair price when purchasing a diamond from Gem World.
MUST BE TRUE:
答案：E
(A) Many jewelry stores other than Gem World also provide written certification of the quality of their diamonds.--------what other jewelry stores do does not matter. irrelevant
(B) The certifications of diamonds at Gem World are written by people with years of experience in appraising gems.----------------seems correct. but not as convincing as E.
(C) The diamonds sold at Gem World are generally of higher quality than those sold at other jewelry stores.-------------the quality is not the issue
(D) The diamond market is so volatile that prices of the most expensive diamonds can change by hundreds of dollars from one day to the next.-----------------how the price change does noting to do with consumers' judgement about the fair price. even weaken the conclusion since the price is volatile
(E) The written certifications of diamonds at Gem World are provided by an independent company of gem specialists.---------------CORRECT. if not independent company, the price specialists gave might reflect the company's interest. which means specialists will overvalue the diamond.

2. 32'
P: algae grow inside the top layer of sea ice in the Antarctic if enough sunlight reaches that layer of ice and enough seawater, which contains nutrients, reaches that layer after splashing onto the surface. moderate snow cover reduces the sunlight that filters into the top layer
C: sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover
EXPLAIN: snow reduce sunlight but brings some advantage for algae, maybe nutrients
答案：A
(A) As the weight of accumulated snow forces ice lower in the water, more seawater splashes onto the surface and seeps through the snow.-----------CORRECT. more seawater=more nutrients
(B) Seawater in the Antarctic often contains higher concentrations of nutrients than does seawater in more temperate regions.------------the comparison between seawater in different regions is irrelevant
(C) As the air temperature around sea ice decreases during the winter, the likelihood decreases that snow will fall and thus add to any existing snow cover.-----------what temperature change leads to is irrelevant
(D) The nutrients on which algae rely are common in seawater throughout the Antarctic.-------------what the nutrients are does not matter at all
(E) More sunlight filters through a layer of ice than through an equally thick layer of snow.-----------------means more snow is a disadvantage, cannot explain the discrepancy.

3. 22'
BG: Garnet and RenCo each provide health care for their employees.
G: pays for both testing of its employees' cholesterol levels and treatment of high cholesterol. This policy saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment
R: does not have the same financial incentive to adopt such a policy
EXPLAIN: the difference between employers in G and R
答案：E
(A) early treatment of high cholesterol does not entirely eliminate the possibility of a stroke later in life-------------whether entirely eliminate, still has its advantage for saving money. this does not illustrate the difference between G and R
(B) the mass media regularly feature stories encouraging people to maintain diets that are low in cholesterol----------------what mass media does is irrelevant
(C) RenCo has significantly more employees than Garnet has--------------what information can be drawn from "more employees"? this statement just slightly suggest the financial incentive to adopt such a policy in R
(D) RenCo's employees are unlikely to have higher cholesterol levels than Garnet's employees----------seems logical, but does higher cholesterol levels mean less patients? not exactly correct. higher≠less
(E) the average length of time an employee stays with RenCo is less than it is with Garnet----------------------CORRECT. short career life means less chance to have employees that develop cholesterol.

4. 30'
P: tree trunks will be used for lumber and the branches converted into wood chips to make fiberboard
   cost of this conversion would be the same whether done at the logging site, or at United's factory
    wood chips occupy less than half the volume of the branches from which they are made.
SUPPORT: chips are more economical for transporting ( ALWAYS BE CAREFUL ABOUT THE "HOWEVER")
答案：D
(A) Converting the branches into wood chips at the logging site would require transporting a fully assembled wood-chipping machine to and from the site.-------------the transporting of machine is not discussed in the question even though it seems to increase the cost
(B) It would be more economical to debranch the trees at the factory where the fiberboard is manufactured.-------------this statement just violate the HOWEVER sentence.
(C) The debranching of trees and the conversion of the branches into chips are the only stages in the processing of branches that it would be in United's economic advantage to perform at the logging site.--------------whether this conversion is the only economic advantage stages is not discussed in the question. WATCH OUT THE IMPORTANT MEANING "ONLY" IN THIS SENTENCE
(D) Transportation costs from the logging site to the factory that are determined by volume of cargo would be lower if the conversion into chips is done at the logging site rather than at the factory.--------------------CORRECT. quite suit the HOWEVER sentence
(E) In the wood-processing industry, branches are used only for the production of wood chips for fiberboard.---------------what the branches are used is irrelevant.

5. 33'
BG: economic stagnation and restrictive regulations inhibited investment in new oil fields.  In consequence, Utranian oil exports dropped steadily as old fields became depleted.
P: Utrania's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields.
C: it would be premature to conclude that the rapid development of new fields will result in higher oil exports
EXPLAIN: new fields≠more export, maybe domestic consume rises
答案：B
(A) the price of oil is expected to remain relatively stable over the next several years---------------what the price is does not affect the export or import. this statement even slightly support the increased export
(B) the improvement in the economic situation in Utrania is expected to result in a dramatic increase in the proportion of Utranians who own automobiles---------------CORRECT. more automobiles mean more domestic consume, may not generate high export
(C) most of the investment in new oil fields in Utrania is expected to come from foreign sources-------------------where the investment comes from does not matter. and this statement even support the more export to foreign sources
(D) new technology is available to recover oil from old oil fields formerly regarded as depleted-----------means more production, support the increasing export
(E) many of the new oil fields in Utrania are likely to be as productive as those that were developed during the period when Utrania was a major oil exporter--------------means more production. support the increasing export.

览物之情

10月21
1 29s
Advertisement: At most jewelry stores, the person
assessing the diamond is the person selling it so
you can see why an assessor might say that a
diamond is of higher quality than it really is.

premise: But because all diamonds sold at Gem World are certified in writing.
Conclusion:you’re assured of a fair price when purchasing a diamond from Gem
World. P 写鉴定的就不是卖的人吗？
The reasoning in the advertisement would be most
strengthened if which one of the following were true?
(A) Many jewelry stores other than Gem World also
provide written certification of the quality of
their diamonds.-----NM
(B) The certifications of diamonds at Gem World
are written by people with years of
experience in appraising gems.——NM
(C) The diamonds sold at Gem World are generally
of higher quality than those sold at other
jewelry stores.-----NM
(D) The diamond market is so volatile that prices of
the most expensive diamonds can change by
hundreds of dollars from one day to the next.----NM
(E) The written certifications of diamonds at Gem
World are provided by an independent
company of gem specialists.-----Correct

2 39s
Background:Microscopic plants called algae grow inside the top layer of sea ice in the Antarctic if enough sunlight reaches that layer of ice and enough seawater, which contains nutrients, reaches that layer after splashing onto the surface.  
Even though moderate snow cover reduces the sunlight that filters into the top layer
现象：sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover.

Which of the following, if true, most helps to explain the apparent discrepancy?
More nutrients?

(A) As the weight of accumulated snow forces ice lower in the water, more seawater splashes onto the surface and seeps through the snow.
(B) Seawater in the Antarctic often contains higher concentrations of nutrients than does seawater in more temperate regions.----NM
(C) As the air temperature around sea ice decreases during the winter, the likelihood decreases that snow will fall and thus add to any existing snow cover.---NM
(D) The nutrients on which algae rely are common in seawater throughout the Antarctic.----NM
(E) More sunlight filters through a layer of ice than through an equally thick layer of snow.----correct

3 30s
Which of the following most logically completes the passage?

Garnet and RenCo each provide health care for their employees.  Garnet pays for both testing of its employees' cholesterol levels and treatment of high cholesterol.  
Conclusion:This policy saves Garnet money
Because: high cholesterol left untreated for many years leads to conditions that require very expensive treatment.  
However, RenCo does not have the same financial incentive to adopt such a policy, because __________.P 他们的turnover很高
因果推理突破点在原因的特点
(A) early treatment of high cholesterol does not entirely eliminate the possibility of a stroke later in life---NM
(B) the mass media regularly feature stories encouraging people to maintain diets that are low in cholesterol---NM
(C) RenCo has significantly more employees than Garnet has---NM
(D) RenCo's employees are unlikely to have higher cholesterol levels than Garnet's employees----NM
(E) the average length of time an employee stays with RenCo is less than it is with Garnet-----correct

4 42s
Premise： The cost of this conversion would be the same whether done at the logging site, where the trees are debranched, or at United's factory.
Outcome： However, wood chips occupy less than half the volume of the branches from which they are made.
现象解释：为什么他们不再工厂里弄。运输费用
The information given, if accurate, most strongly supports which of the following?
(A) Converting the branches into wood chips at the logging site would require transporting a fully assembled wood-chipping machine to and from the site.--wrong
(B) It would be more economical to debranch the trees at the factory where the fiberboard is manufactured.--wrong
(C) The debranching of trees and the conversion of the branches into chips are the only stages in the processing of branches that it would be in United's economic advantage to perform at the logging site.----susepct
(D) Transportation costs from the logging site to the factory that are determined by volume of cargo would be lower if the conversion into chips is done at the logging site rather than at the factory.-----correct
(E) In the wood-processing industry, branches are used only for the production of wood chips for fiberboard.---NM

5 31s
hich of the following most logically completes the argument?

premise:Utrania's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields.
Conclusion: However, it would be premature to conclude that the rapid development of new fields will result in higher oil exports, because __内需增加

(A) the price of oil is expected to remain relatively stable over the next several years
(B) the improvement in the economic situation in Utrania is expected to result in a dramatic increase in the proportion of Utranians who own automobiles----correct
(C) most of the investment in new oil fields in Utrania is expected to come from foreign sources----NM
(D) new technology is available to recover oil from old oil fields formerly regarded as depleted----NM
(E) many of the new oil fields in Utrania are likely to be as productive as those that were developed during the period when Utrania was a major oil exporter—NM

w.melhere

1.32  1.03
2. 2'07
3.33‘
4. 57'  1.37
5.2.24'   做题花了这么久，而且还错了...不过这道题错的真是心服口服啊，做题的时候看完B完全没找到感觉，后来再仔细读的时候才想到。
B选项说，U的经济快速发展，拥有汽车的人的比例会很大。也就是说国内对石油的消耗会大幅增长。故用于出口的石油就不一定能增长了。

btw，pace到底怎么掌握好啊？ 每道题在规定的时间内就可以了么?  觉得还是没有很稳定的pace

yuehuasunday

1-20

1.

Background: Advertisement: At most jewelry stores, the person
assessing the diamond is the person selling it

Premise: so
you can see why an assessor might say that a
diamond is of higher quality than it really is.

Conclusion: But because all diamonds sold at Gem World
are certified in writing, you’re assured of a fair
price when purchasing a diamond from Gem
World.

(E) Correct, the best choice

2.

Background: Microscopic plants called algae grow inside the top layer of sea ice in the Antarctic if enough sunlight reaches that layer of ice and enough seawater

Premise: Even though moderate snow cover reduces the sunlight that filters into the top layer

Conclusion: sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover.

(A) Correct

3.

Background: Garnet and RenCo each provide health care for their employees.

Premise: Garnet pays for both testing of its employees' cholesterol levels and treatment of high cholesterol.

Conclusion: This policy saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment.

(E) Correct

4.

Background: United Lumber will use trees from its forests for two products.

Premise: The tree trunks will be used for lumber and the branches converted into wood chips to make fiberboard.

Conclusion: The cost of this conversion would be the same whether done at the logging site, where the trees are debranched, or at United's factory.

(D) Correct

5.

Background: Utrania was formerly a major petroleum exporter, but in recent decades economic stagnation and restrictive regulations inhibited investment in new oil fields.

Premise: In consequence, Utranian oil exports dropped steadily as old fields became depleted.  

Conclusion: Utrania's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields.  However, it would be premature to conclude that the rapid development of new fields will result in higher oil exports, because __________.

(B) Correct

irenetopia

1.        1：30
Advertisement: At most jewelry stores, the person
assessing the diamond is the person selling it so
you can see why an assessor might say that a
diamond is of higher quality than it really is.
But because all diamonds sold at Gem World
are certified in writing, you’re assured of a fair
price when purchasing a diamond from Gem
World.
The reasoning in the advertisement would be most
strengthened if which one of the following were true？
逻辑链：大多数珠宝店，一个人评价珠宝总是说比其他人质量好，因为大部分都是自己个人出售的。
但是在GW珠宝店你就不用担心，因为我们有个检测证书。
问加强
思路：检测证书突出了GW的公平性，那么是不是这个检测证书就一定客观？加强客观性的都是support！
(A) Many jewelry stores other than Gem World also
provide written certification of the quality of
their diamonds.——weaken
(B) The certifications of diamonds at Gem World
are written by people with years of
experience in appraising gems.——irrelevant，有点道理，但是不是特别有说服力，留着
(C) The diamonds sold at Gem World are generally
of higher quality than those sold at other
jewelry stores.——觉得重复前提，排除
(D) The diamond market is so volatile that prices of
the most expensive diamonds can change by
hundreds of dollars from one day to the next.——贵跟质量可信赖有什么关系
(E) The written certifications of diamonds at Gem
World are provided by an independent
company of gem specialists.——bingo！因为检测公司是第三方独立，客观加强！




PREP CR 2 逻辑练习


5.   1:45
Microscopic plants called algae grow inside the top layer of sea ice in the Antarctic if enough sunlight reaches that layer of ice and enough seawater, which contains nutrients, reaches that layer after splashing onto the surface.  Even though moderate snow cover reduces the sunlight that filters into the top layer, sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover.
Which of the following, if true, most helps to explain the apparent discrepancy?
逻辑链A植物在top layer of sea ice 上生长，需要两个条件，足够的阳光，足够的海水
但是，即使下雪了，阻挡了阳光的穿透力，但是A植物反而多了
求解释：阳光少了，但是营养更多，说明什么？海水多了！

(A) As the weight of accumulated snow forces ice lower in the water, more seawater splashes onto the surface and seeps through the snow.——bingo！
(B) Seawater in the Antarctic often contains higher concentrations of nutrients than does seawater in more temperate regions.——没有这个和其他常温地区的比较
(C) As the air temperature around sea ice decreases during the winter, the likelihood decreases that snow will fall and thus add to any existing snow cover.——题目是讨论下雪后A多了的原因，不是说雪下不下的原因
(D) The nutrients on which algae rely are common in seawater throughout the Antarctic.——无关
(E) More sunlight filters through a layer of ice than through an equally thick layer of snow.——weaken！


6.   1:45


Which of the following most logically completes the passage?


Garnet and RenCo each provide health care for their employees.  Garnet pays for both testing of its employees' cholesterol levels and treatment of high cholesterol.  This policy saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment.  However, RenCo does not have the same financial incentive to adopt such a policy, because __________.
逻辑链：G公司和R公司都在给员工进行医保
G测试员工胆固醇并且治疗高胆固醇员工，但这样会让他省钱（如果不治疗多年以后发现花公司更多钱）
但是R不用做这个，因为？
思路：花钱是为了多年以后省钱。那么不花钱是因为什么？没有多年以后这个说法~也就是员工不会呆很久


(A) early treatment of high cholesterol does not entirely eliminate the possibility of a stroke later in life——但是只要早期治疗就能省钱
(B) the mass media regularly feature stories encouraging people to maintain diets that are low in cholesterol——跟做体检有关么
(C) RenCo has significantly more employees than Garnet has——这样岂不是更要做了，不然多年以后要破产
(D) RenCo's employees are unlikely to have higher cholesterol levels than Garnet's employees——但治疗C还是会存在，即使得病的人少
(E) the average length of time an employee stays with RenCo is less than it is with Garnet——bingo！因为可能发现有胆固醇之前就走了，公司花费只会waste money


7.   1:08

United Lumber will use trees from its forests for two products.  The tree trunks will be used for lumber and the branches converted into wood chips to make fiberboard.  The cost of this conversion would be the same whether done at the logging site, where the trees are debranched, or at United's factory.  However, wood chips occupy less than half the volume of the branches from which they are made.


The information given, if accurate, most strongly supports which of the following?
逻辑链：UL用tree做两种东西，用WC和BRANCH做：FB，不论在不在伐木地区直接坐做FB，成本一样，但是WC占体积是BRANCH的一半

问结论：也就是其实在，体积一半，同样的车材料就能装两倍
这样成本就少了

(A) Converting the branches into wood chips at the logging site would require transporting a fully assembled wood-chipping machine to and from the site.——无关
(B) It would be more economical to debranch the trees at the factory where the fiberboard is manufactured.——反了
(C) The debranching of trees and the conversion of the branches into chips are the only stages in the processing of branches that it would be in United's economic advantage to perform at the logging site.——没有提到是only
(D) Transportation costs from the logging site to the factory that are determined by volume of cargo would be lower if the conversion into chips is done at the logging site rather than at the factory.——bingo！
(E) In the wood-processing industry, branches are used only for the production of wood chips for fiberboard.——没有提到


8.   1:30


Which of the following most logically completes the argument?


Utrania was formerly a major petroleum exporter, but in recent decades economic stagnation and restrictive regulations inhibited investment in new oil fields.  In consequence, Utranian oil exports dropped steadily as old fields became depleted.  Utrania's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields.  However, it would be premature to conclude that the rapid development of new fields will result in higher oil exports, because __________.

逻辑链：U原来是个石油出口大国，但是最近由于经济衰退和对新油田的投入限制
U的石油出口下降因为老油田也快开发完了
因此U 最近XXXX（干了好多事）可以让石油产量变多

但是过早地认为U石油出口会变高是不对的
问原因：前提，石油产量低，出口低。
现在石油产量高了，出口低
产量高不可质疑，找到可能不会出口的原因，结果必然导致不会高出口
(A) the price of oil is expected to remain relatively stable over the next several years——无关
(B) the improvement in the economic situation in Utrania is expected to result in a dramatic increase in the proportion of Utranians who own automobiles。——bingo！因为内销了
(C) most of the investment in new oil fields in Utrania is expected to come from foreign sources——反了
(D) new technology is available to recover oil from old oil fields formerly regarded as depleted——反了
(E) many of the new oil fields in Utrania are likely to be as productive as those that were developed during the period when Utrania was a major oil exporter——irrelevant

cyndichiang

精练题：43‘’
premise: At most jewelry stores, the person assessing the diamond is the person selling it so you can see why an assessor might say that a diamond is of higher quality than it really is
premise: all diamonds sold at Gem World are certified in writing,
conclusion：you’re assured of a fair price when purchasing a diamond from Gem World.
Q：support
prephraese: you should eliminate the weakening consequence to strengthen the conclusion
                 if the certified writing is from the selling department, according to the premise1, the real quality is worse than that written in the certified writing.
(A) Many jewelry stores other than Gem World also
provide written certification of the quality of
their diamonds.------irrelevant ,the statement is concerned with the jewelry bought in Gem
(B) The certifications of diamonds at Gem World
are written by people with years of
experience in appraising gems.-------irrelevant, since the argument is judge the accountability of the certified writing, the restate of the conclusion but no explanation of  the assessment of the writing is irrelevant
(C) The diamonds sold at Gem World are generally
of higher quality than those sold at other
jewelry stores.------irrelevant, the comparison between the other stores and the Gem World cannot strengthen the argument,since what we should deal with the writing in Gem
(D) The diamond market is so volatile that prices of
the most expensive diamonds can change by
hundreds of dollars from one day to the next.-----opposite,slightly weaken;since the price fluctuates considerably,so the price in the certified writing is not useful to judge the value of jewlry
选项分析错了。答案说 However, the answer choice specifically mentions “the most expensive diamonds” and there is no guarantee that Gem World carries diamonds in this price range. So, at best, the answer choice has no effect on the argument and is therefore incorrect.没有仔细看the most expensive
(E) The written certifications of diamonds at Gem
World are provided by an independent
company of gem specialists.-----Correct,since the statement eliminate a weakening situation, if the certified writing is from the same selling department,according to the premise1, the price cannot reflect the real price

cyndichiang

逻辑链
1. 49‘’
premise:algae grow inside the top layer of sea ice if enough sunlight reaches that layer of ice and enough seawater, which contains nutrients, reaches that layer after splashing onto the surface
conclusion: Even though moderate snow cover reduces the sunlight that filters into the top layer, sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover.
Q:Support
prephrase: snow cover can increase the number of algae in the top layer by some ways

3. 36''
premise: testing of its employees' cholesterol levels and treatment of high cholesterol  saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment
premise:??
conclusion: RenCo does not have the same financial incentive to adopt such a policy
Q: support
prephrase: 因推果，两个公司的比较，只要指出两个公司的员工在cholesterol的不同点：find the reason why RC does not need the policy

3. 35''
BG:United Lumber will use trees from its forests for two products.  The tree trunks will be used for lumber and the branches converted into wood chips to make fiberboard.  
premise: The cost of conversion : the logging site, where the trees are debranched = United's factory.
premise: wood chips occupy less than half the volume of the branches .
Conclusion:???
Q:must be true
prephrase: Since chips occupy less volume than the branches,more chips can be transported from logging site to factory than branches thus chips cost less.

4.31''
BG: U was formerly a major petroleum exporter, but in recent decades economic stagnation and restrictive regulations inhibited investment in new oil fields and U's oil exports dropped steadily as old fields became depleted.  
premise:U's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields.  
conclusion: it would be premature to conclude that the rapid development of new fields will result in higher oil exports
Q:support
prephrase: new oil fields can be explored and increase the oil production