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4.
Galanin is a protein found in the brain. In an experiment, rats that consistently chose to eat fatty foods when offered a choice between lean and fatty foods were found to have significantly higher concentrations of galanin in their brains than did rats that consistently chose lean over fatty foods. These facts strongly support the conclusion that galanin causes rats to crave fatty foods.
In order to strengthen the argument, we need to demonstrate the causality that galanin causes rates to crave fatty foods. Which one of the following, if true, most supports the argument?
(A) The craving for fatty foods does not invariably result in a rat’s choosing those foods over lean foods.
The result of the craving for fatty foods has been referred in the argument, a phenomenon that rats consistently chose fatty foods over lean foods. (B) The brains of the rats that consistently chose to eat fatty foods did not contain significantly more fat than did the brains of rats that consistently chose lean foods.
The fat in the brains of the rats that consistently chose to eat fatty foods is outside the scope of the argument. (C) The chemical components of galanin are present in both fatty foods and lean foods.
The chemical components of galanin are irrelevant. (D) The rats that preferred fatty foods had the higher concentrations of galanin in their brains before they were offered fatty foods.
Yes, in this case, it points out that it is the higher concentrations of galanin cause these rats to choose fatty foods. BA (E) Rats that metabolize fat less efficiently than do other rats develop high concentrations of galanin in their brains.
Metabolizing fat has no effect on the argument.
It is the opposite answer, which reverses the causal relationship in the argument.
33.(31499-!-item-!-188;#058&006343) Over the last five years, demand for hotel rooms in Cenopolis has increased significantly, as has the average price Cenopolis hotels charge for rooms. These trends are projected to continue for the next several years. In response to this economic forecast, Centennial Commercial, a real estate developer, is considering a plan to convert several unoccupied office buildings it owns in Cenopolis into hotels in order to maximize its revenues from these properties. Which of the following would it be most useful for Centennial Commercial to know in evaluating the plan it is considering?
(A) Whether the population of Cenopolis is expected to grow in the next several years
The population of Cenopolis is irrelevant, since the demand for hotel rooms may come from travelers. (B) Whether demand for office space in Cenopolis is projected to increase in the near future
Yes, if so, the plan is highly suspectable. Otherwise, it is useful. BA (C) Whether the increased demand for hotel rooms, if met, is likely to lead to an increase in the demand for other travel-related services
The demand for other travel-related services is outside the scope of the argument. (D) Whether demand for hotel rooms has also increased in other cities where Centennial owns office buildings
It seems to be a contender. However, it is a Shell Game answer, since it refers to other cities, which are outside the scope of the argument. (E) Whether, on average, hotels that have been created by converting office buildings have fewer guest rooms than do hotels that were built as hotels
The comparison of guest rooms is irrelevant, even though it may influence the revenue of the company. But we cannot compare the whole revenues between office buildings and new hotels
34.(31547-!-item-!-188;#058&006362) 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 and less 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.
Higher wages are not related to the on-the-job accidents. (B) Its management hires new workers but lacks the time to train them properly.
Yes, it accurately points out a question in the argument. More new workers lack training are hired, more on-the job accidents will happen. BA (C) Its employees are less likely to lose their jobs than they are at other times.
Unemployment is irrelevant. (D) Its management sponsors a monthly safety award for each division in the factory.
It strengthens the argument in some degree by showing that the safety award inspire people to watch out during work. (E) Its old machinery is replaced with modern, automated models.
It strengthens the argument by showing that modern, automated models produce fewer accidents than old machinery does.
35.(31595-!-item-!-188;#058&006404) It is illegal to advertise prescription medications in Hedland except directly to physicians, either by mail or in medical journals. A proposed law would allow general advertising of prescription medications. Opponents object that the general population lacks the specialized knowledge to evaluate such advertisements and might ask their physicians for inappropriate medications. But since physicians have the final say as to whether to prescribe a medication for a patient, inappropriate prescriptions would not become more common.
Please note the first two sentences, and we can find out that the purpose of these advertisements is to let general public know something about prescription medications.
The purpose is to settle down the question that whether advertising of prescription medications should be allowed, especially to general public. Which of the following would it be most useful to establish in order to evaluate the argument?
(A) Whether advertising for prescription medications might alert patients to the existence of effective treatments for minor ailments that they had previously thought to be untreatable
Minor ailments that patients thought to be untreatable have no effect on the argument. (B) Whether some people might go to a physician for no reason other than to ask for a particular medication they have seen advertised
As physicians have the final say as to whether to prescribe a medication for a patient, this answer choice is ineffective.
(C) Whether the proposed law requires prescription-medication advertisements directed to the general public to provide the same information as do advertisements directed to physicians
Because the general population lacks the specialized knowledge to evaluate such advertisements, even though these advertisements provide the same information to the general public as information to physicians, this answer choice has no effect on the argument. (D) Whether advertisements for prescription medications are currently an important source of information about newly available medications for physicians
Yes, if it is, the advertisements are useful. Otherwise, they are ineffective. BA
This answer choice actually has no effect on the argument that whether advertising of prescription medications to general public should be allowed, but it has only effect on the argument that whether advertising of prescription medications to physicians. However, from the first sentence, we can infer that it is legal to advertise prescription medications in Hedland directly to physicians.It is a Shell Game answer! (E) Whether physicians would give in to a patient's demand for a prescription medication chosen by the patient when the one originally prescribed by the physician fails to perform as desired
Even though they give in to a patient’s demand for a prescription medication chosen by the patient, the medication may not come from the advertisements.
If physicians give in, patients can use the medications that are known by patients from the advertisements. Otherwise, patients cannot use these medications as they want.
36.(31643-!-item-!-188;#058&006431) Traveler: Southern Airways has a far worse safety record than Air Dacentaria over the past few years, in terms of both the frequency of accidents and the severity of accidents. Therefore, although Air Dacentaria is slightly more expensive, I will choose it over Southern Airways for my flight from Pederton to Dacenta, since it is worth paying extra to have a safer flight. Which of the following, if true, casts the most serious doubt on the traveler's argument?
(A) Air Dacentaria's flight from Pederton to Dacenta is nonstop, whereas Southern Airways' flight touches down in Gorinda on the way.
Whether the flight has a stop is irrelevant, since we do not the safety about it. (B) Most Southern Airways flights, but not its flight from Pederton to Dacenta, use Sarmouth airport, which because of its mountainous location is one of the world's most dangerous.
Yes, it rightly points out a cause to the higher accidents in Southern Airways than those in Air Dacentaria, but the cause has no effect on the flight from Pederton to Dacenta. BA (C) For its flights from Pederton to Dacenta, Southern Airways uses a different model of airplane, with a smaller capacity, than the model Air Dacentaria uses for its flights on the same route.
We do not know whether a smaller capacity is more safe. (D) Only in the last few years has the cost of flying from Pederton to Dacenta been more expensive on Air Dacentaria than on Southern Airways.
Although it is only in the last few years that has the cost of flying from Pederton to Dacenta been more expensive on Air Dacentaria than on Southern Airways, flights On Air Dacentaria may be safer than those on Southern Airways, thus strengthening the arguemnt. (E) Although the frequency of accidents is greater on Southern Airways, on both airlines the proportion of flights that have accidents is very small.
Even though the proportion of fights that have accidents is very small, the result can be very terrible. Besides, this answer choice fails to point out the difference between the two airline companies.
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