下面几道题做了几次还是会错。可以为我作出解释吗？谢谢
The ancient Nubians inhabited an area in which typhus occurs, yet surprisingly few of their skeletons show the usual evidence of this disease. The skeletons do show deposits of tetracycline, an antibiotic produced by a bacterium common in Nubian soil. This bacterium can flourish on the dried grain used for making two staples of the Nubian diet, beer and bread. Thus, tetracycline in their food probably explains the low incidence of typhus among ancient Nubians.
Which of the following is an assumption on which the argument relies?
Because it was long thought that few people would watch lengthy televised political messages, most televised political advertisements, like commercial advertisements, took the form of short messages. Last year, however, one candidate produced a half-hour-long advertisement. During the half hour the advertisement was aired, a substantial portion of the viewing public tuned into the advertisement. Clearly, then, many more people are interested in watching lengthy televised political messages than was previously thought. Which of the following is an assumption on which the argument depends? A. The candidate’s ratings improved significantly as a result of the half-hour-long political advertisement. B. Political advertisements have become increasingly influential in determining voters’ decisions at the polls. C. Many people would appreciate the opportunity to become better acquainted with political candidates’ views on current political issues. D. Most people who are interested in political issues watch television regularly. E. Most of the viewers who tuned in to the candidate’s half-hour-long advertisement last year did not change channels after the first few minutes. GWD-23-Q32 Excavations of the Roman city of A.The Sepphoris mosaics are not composed exclusively of types of stones found naturally in the Sepphoris area. B. There is no single region to which all the species depicted in the Sepphoris mosaics are native. C.No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city. D.All of the animal figures in the Sepphoris mosaics are readily identifiable as representations of known species. E.There was not a common repertory of mosaic designs with which artisans who lived in various parts of the In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent. Coponia is about to raise taxes on cigarettes by 9 cents per pack. The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack. So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent. A.Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia. B.Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes. C.Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely. D.At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price. E.The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years. GWD-30-Q27 Personnel officer: The exorbitant cost of our health-insurance benefits reflects the high dollar amount of medical expenses incurred by our employees. Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit. Therefore, since we must reduce our health-insurance costs, we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate. The conclusion reached by the personnel officer depends on which of the following assumptions? A.A person who is fit would receive a routine physical checkup by a doctor less regularly than would a person who is out of shape. B.The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by employees who are not required to participate. C.The strenuous activities required of out-of-shape employees by the program would not by themselves generate medical expenses greater than any reduction achieved by the program. D.The fitness program would serve more employees who are out of shape than it would employees who are fit. E.The employees who participate in the fitness program would be away from work because of illness less than would the employees who do not participate. GWD-21-Q38
Which of the following is an assumption on which the argument depends? GWD-29-Q38
Which of the following is an assumption on which the argument depends?
Because it was long thought that few people would watch lengthy televised political messages, most televised political advertisements, like commercial advertisements, took the form of short messages. Last year, however, one candidate produced a half-hour-long advertisement. During the half hour the advertisement was aired, a substantial portion of the viewing public tuned into the advertisement. Clearly, then, many more people are interested in watching lengthy televised political messages than was previously thought.
Which of the following is an assumption on which the argument depends?
A. The candidate’s ratings improved significantly as a result of the half-hour-long political advertisement.
B. Political advertisements have become increasingly influential in determining voters’ decisions at the polls.
C. Many people would appreciate the opportunity to become better acquainted with political candidates’ views on current political issues.
D. Most people who are interested in political issues watch television regularly.
E. Most of the viewers who tuned in to the candidate’s half-hour-long advertisement last year did not change channels after the first few minutes.
GWD-23-Q32
Excavations of the Roman city of
Which of the following is an assumption on which the argument depends?
A.The Sepphoris mosaics are not composed exclusively of types of stones found naturally in the Sepphoris area.
B. There is no single region to which all the species depicted in the Sepphoris mosaics are native.
C.No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city.
D.All of the animal figures in the Sepphoris mosaics are readily identifiable as representations of known species.
E.There was not a common repertory of mosaic designs with which artisans who lived in various parts of the
In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent. Coponia is about to raise taxes on cigarettes by 9 cents per pack. The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack. So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent.
Which of the following is an assumption on which the argument depends?
A.Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia.
B.Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.
C.Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely.
D.At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price.
E.The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.
GWD-30-Q27
Personnel officer: The exorbitant cost of our health-insurance benefits reflects the high dollar amount of medical expenses incurred by our employees. Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit. Therefore, since we must reduce our health-insurance costs, we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate.
The conclusion reached by the personnel officer depends on which of the following assumptions?
A.A person who is fit would receive a routine physical checkup by a doctor less regularly than would a person who is out of shape.
B.The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by employees who are not required to participate.
C.The strenuous activities required of out-of-shape employees by the program would not by themselves generate medical expenses greater than any reduction achieved by the program.
D.The fitness program would serve more employees who are out of shape than it would employees who are fit.
E.The employees who participate in the fitness program would be away from work because of illness less than would the employees who do not participate.
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