寻求高手为我解答几道OG12thCR的真题

ymbspy

目前刚接触GMAT没多久，英语水平一般，把OG逻辑部分做了一下，有几道题无论如何也理解不了，看OG解释也搞不明白   恳请各位高手帮忙解答，从题目大意意到选项解释，感激不尽！！

Sales of specialty types of coffee have held steady as sales of regular brands have declined.  翻译

63. When hypnotized subjects are told that they are deaf and are then asked whether they can hear the hypnotist, they reply, “No.” Some theorists try to explain this result by arguing that the selves of hypnotized subjects are dissociated into separate parts, and that the part that is deaf is dissociated from the part that replies.Which of the following challenges indicates the most serious weakness in the attempted explanation described above?

(A)Why does the part that replies not answer, “Yes”?
(B) Why are the observed facts in need of any special explanation?

(C)Why do the subjects appear to accept the hypnotist’s suggestion that they are deaf?

(D)Why do hypnotized subjects all respond the same way in the situation described?

(E) Why are the separate parts of the self the same for all subjects?




81. When demand for a factory’s products is high, more money is spent at the factory for safety precautions and machinery maintenance than when demand is low. Thus the average number of on-the-job accidents per employee each month should be lower during periods when demand is high than when demand is low andless money is available for safety precautions and machinery maintenance.

Which of the following, if true about a factory when demand for its products is high, casts the most serious doubt on the conclusion drawn above?

(A) Its employees ask for higher wages than they do at other times.

(B)Its management hires new workers but lacks the time to train them properly.
(C) Its employees are less likely to lose their jobs than they are at other times.

(D) Its management sponsors a monthly safety award for each division in the factory.

(E)Its old machinery is replaced with modern, automated models.



104.Although the discount stores in Goreville’s central shopping district are expected to close within five years as a result of competition from a SpendLess discount department store that just opened, those locations will not stay vacant for long. In the five years since the opening of Colson’s, a non-discount department store, a new store has opened at the

location of every store in the shopping district that closed because it could not compete with Colson’s.

Which of the following, if true, most seriously weakens the argument?

(A) Many customers of Colson’s are expected to do less shopping there than they did before the SpendLess store opened.

(B) Increasingly, the stores that have opened in the central shopping district since Colson’s opened have been discount stores.
(C) At present, the central shopping district has as many stores operating in it as it ever had.

(D) Over the course of the next five years, it is expected that Goreville’s population will grow at a faster rate than it has for the past several decades.

(E) Many stores in the central shopping district sell types of merchandise that are not available at either SpendLess or Colson’s.

sdcar2010

63

A is right. Since the deaf part and the replying part are dissociated from each other, we can deduce the part that replies is not deaf.  Thus, when answering the question "Can you hear me?", they should reply "Yes!"

D is wrong because if the hearing part and the deaft part are separated, all subjects can give a uniformed answer to the same question.  This is in accordance to the theorist hypothesis.  For example, if they all answer "Yes," the hypothesis holds. So the fact that the answers are uniformed does not weaken the argument.

sdcar2010

81

This is a simple question in terms of logic.

Premise: 1) when demand is high, more money is spent for saftey precautions and machinery maintenance than when demand is low.
           
Conclusion: The average number of work-related accidents per employee per month should be lower when demand is high than when demand is low.

The assumption is that 1) NOTHING else changes or matters when comparing safety data between high demand period and low demand period; 2) more money spent on safety precaustions and machinery maintenance will lead to reduction on accident rate per worker.

To weaken this argument, you need to find a condition, if true, casts more doubt on the argument.  One way to do this is to attack the assumptions.  B simply does that by pointing out one key difference between the two periods - new workers are hired during the high demand period.  These workers lack safety training and would be accident-prone during the high demand period.  Thus, the argument is weakened.

sdcar2010

104 has been discussed over and over. Google for explanations on this forum.

ymbspy

谢谢！