8月17日LSAT题请教

bigmouse

section11-IV-9
9. There is relatively little room for growth in the overall carpet market, which is tied to the size of the population. Most who purchase carpet do so only once or twice, first in their fifties or sixties. Thus as the population ages, companies producing carpet will be able to gain market share competitors, and not through more aggressive marketing.
Which one of the following, if true, casts the most doubt on the conclusion above?
(A) Most of the major carpet producers market other floor coverings as well.
(B) Most established carpet producers market several different brand names and varieties, and there is no remaining niche in the market for new brands to fill.
(C) Two of the three mergers in the industry’s last ten years led to a decline in profits and revenues for the newly merged companies.
(D) Price reductions, achieved by cost-cutting in production, by some of the dominant firms in the carpet market are causing other producers to leave the market altogether.
(E) The carpet market is unlike most markets in that consumers are becoming increasingly resistant to new patterns and styles.
answer my choice:E

18. Advertisement: Attention pond owners! Ninety-eight percent of mosquito larvae in a pond die within minutes after the pond has been treated with BTI. Yet BTI is not toxic to fish, birds, animals, plants, or beneficial insects. So by using BTI regularly to destroy their larvae, you can greatly reduce populations of pesky mosquitoes that hatch in your pond, and you can do so without diminishing the populations of fish,
frogs, or beneficial insects in and around the pond.
Which one of the following is an assumption on which the argument depends?
(A) The most effective way to control the numbers of mosquitoes in a given area is to destroy the mosquito larvae in that area.
(B) Populations of mosquitoes are not dependent on a single body of water within an area as a place foe their larvae to hatch and develop
(C) There are no insect pests besides mosquitoes that pond owners might want to eliminate from in and around their pond.
(D) The effectiveness of BTI in destroying mosquito larvae In a pond does not require the pond owner’s strict adherence to specific application procedures.
(E) The fish, frogs, and beneficial insects in and around a pond-owner’s pond do not depend on mosquito larvae as an important source of food.
answer:E my choice:A

22. Only an expert in some branch of psychology could understand why Patrick is behaving irrationally. But no expert is certain of being able to solve someone else’s problem. Patrick wants to devise a solution to his own behavioral problem.
Which one of the following conclusions can be validly drawn from the passage?
(A) Patrick does not understand why he is behaving in this way.
(B) Patrick is not an expert in psychology.
(C) Patrick is not certain of being able to devise a solution to his own behavioral problem.
(D) Unless Charles is an expert in some branch of psychology, Charles should not offer a solution to Patrick’s behavioral problem.
(E) If Charles is certain of being able to solve Patrick’s behavioral problem, then Charles does not understand why Patrick is behaving in this way.
answer:E my choice:A

section12-II-22
22. Oil company representative: We spent more money on cleaning the otters affected by our recent oil spill than has been spent on any previous marine mammal rescue project. This shows our concern for the environment.
Environmentalist: You have no such concern. Your real concern is evident in your admission to the press that news photographs of oil-covered otters would be particularly damaging to your public image, which plays an important role in your level of sales.
The environmentalist's conclusion would be properly drawn if it were true that the
(A) oil company cannot have more than one motive for cleaning the otters affected by the oil spill
(B) otter population in the area of the oil spill could not have survived without the cleaning project
(C) oil company has always shown a high regard for its profits in choosing its courses of action
(D) government would have spent the money to clean the otters if the oil company had not agreed to do it
(E) oil company's efforts toward cleaning the affected otters have been more successful than have such efforts in previous projects to clean up oil spills
answer :A my choice:C

section13-IV-20
20. A new gardening rake with an S-shaped handle reduces compression stress on the spine during the pull stroke to about one-fifth of what it is with a straight-handled rake. During the push stroke, however,compression stress is five times more with the new rake than with a straight-handled rake. Neither the push stroke nor the pull stroke with a straight-handled rake produces enough compression stress to cause injury,but compression stress during the push stroke with the new rake is above the danger level. Therefore,straight-handled rakes are better than the new rakes for minimizing risk of spinal injury.
The conclusion above is properly drawn from the permission given if which one of the following is true?
(A) Compression stress resulting from pushing is the only cause of injuries to the spine that occurs as a result of raking.
(B) Raking is a frequent cause of spinal injury among gardeners.(C) The redesign of a tool rarely results in a net gain of efficiency, since gains tend to be counterbalanced by losses.
(D) A garden rake can never be used in such a way that all the strokes with that rake are push strokes.
(E) It is not possible to design a garden rake with a handle that is other than straight or S-shaped.
answer:A my choice:E

[此贴子已经被作者于2003-8-21 16:25:01编辑过]