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The enormous distances between stars are not spaces entirely devoid of matter. The interstellar spaces are filled with `dust`: very low density matter. This miniscule amount of matter, spread over almost infinite distances, acts like a curtain obscuring the stars that lie behind. If it were not for this material we would see no dark patches in the sky at night: the sky would be entirely covered with stars.
The two parts in boldface play what roles in the argument above?
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Anton: I sold my house on an internet site last year and was happy with the price. I got a speedy sale and the cost of advertising was insignificant. I would advise you to avoid real estate agents.
Barbie: It is in the interest of the real estate agent to get me the best price for my property because he gets a commission based on the selling price. Therefore, when selling my house I will certainly use an agent rather than trying to sell the house by word of mouth, or by advertising in newspapers or on the internet.
Barbie`s could strengthen her position by pointing out all of the following except
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Scientists investigating a rare metabolic disorder hypothesized that obesity was a predisposing factor in the development of the disease. A study of twenty patients found that, on average, the patients were close to the normal weight for their height.
Before concluding that obesity is not a predisposing factor, the researchers would find the answer to which of the following questions most useful?
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In a recent study of responses to visual images, researchers found that women most frequently gave the rating `most attractive` to images of male faces that were more feminine in contour, and rated more masculine faces, on average, `less attractive`. The researchers concluded that modern women prefer men who are less obviously masculine in their facial features.
Which is the following is an assumption that the researchers apparently made in this study?
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In research designed to investigate the possibility of animals developing friendship with other, unrelated, members of their species, a group of 29 chimpanzees were reared together for 15 years. At the end of that time the chimps were presented with two options for obtaining food: press a lever and feed themselves, or press another identical lever and feed themselves, and at the same time deliver food to the chimp next door. (The chimps were able to see each other). The researchers found that the chimps were no more likely to choose the lever that fed a neighbor. The researchers concluded that the chimps had no concept of friendship. However, one critic has suggested that the animals were in an artificial environment from which little can be concluded, and that, at the least, the test ought to have involved the animals being able to touch.
What role do the parts in boldface play in the argument above?
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French cuisine is highly regarded all over the world. Yet in Paris there are more American restaurants selling burgers and fries (which many people now class as `junk food`) than there are in any other European capital city. Obviously the French are very fond of `junk food`, and are not too proud to eat it.
Which of the following, if true, would most weaken the author`s contention?
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Photography is no longer an art form. Nowadays everyone has access to digital cameras that only need to be pointed at the subject in order to generate a perfect image.
The writer of the argument apparently assumes that
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A nature conservancy expert found little support for his campaign to protect toads. He suggested that, even thought the campaign highlighted the vital role the toads played in the ecology of the region, people were unenthusiastic about saving toads as these animals are perceived as unpleasant creatures, and people seldom feel passionate about animals with which they have no positive feelings.
The expert`s opinion would be most strengthened by which of the following observations?
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Jay: We have too many people working on each of our computers in the office. The high frequency of breakdowns is due to too many people handling the same hardware.
Ada: We have just as many people working in our office, yet we hardly need any repairs to our systems. Our systems must be more robust than yours.
Jay apparently believes that
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It has been suggested that long-term prisoners, on release from jail, be given a reasonable state pension to reduce the likelihood of their resorting to crime. Most people instinctively reject the suggestion as they feel it would be like rewarding criminal activity.
The supporters of the prisoners` pension scheme have criticized those who reject this possibility, by claiming that for the critics......
Which of the following is the most logical completion of the sentence above?
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