Q15:
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists are attempting to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in beta-carotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.
Which of the following, if true, most strongly supports the prediction that the plan will succeed?
The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.
The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.
There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.
There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
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Q16:
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
a greater proportion than it was
a greater proportion than
a greater proportion than they have been
which is greater than was so
which is greater than it has been
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Q17:
The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scale—the seven-note musical scale used in much of Western music since the Renaissance. Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.
Which of the following, if true, most strongly supports the hypothesis?
Bone flutes were probably the only musical instrument made by Neanderthals.
No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.
The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.
Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.
The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale.
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Q18:
It is illegal to advertise prescription medications in Hedland except in professional medical journals or by mail directly to physicians. A proposed law would allow general advertising of prescription medications. Opponents object that, in general, laypersons lack 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, the objection provides no grounds for concern.
Which of the following would it be most useful to establish in order to evaluate the argument?
Whether nonprescription medications can interact with and block the action of any prescription medications that could be advertised to the general public
Whether most prescription medication advertisements directed at the general public would be advertisements for recently developed medications newly available by prescription
Whether prescription medication advertisements directed at the general public would appear on television and radio as well as in print
Whether physicians are more likely to pay attention to advertising directed to the general public than to advertising directed to physicians
Whether physicians are likely to succumb to pressure from patients to prescribe inappropriate medications
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Q19:
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
not caused by stress, alcohol, or rich foods, but
not caused by stress, alcohol, or rich foods, but are by
caused not by stress, alcohol, or rich foods, but by
caused not by stress, alcohol, and rich foods, but
caused not by stress, alcohol, and rich foods, but are by
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Q20:
Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China’s first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete them.
took 700,000 artisans more than 36 years to complete them
took 700,000 artisans more than 36 years to complete it
took 700,000 artisans more than 36 years to complete
700,000 artisans took more than 36 years to complete
to complete them too 700,000 artisans more than 36 years
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Q21:
That twenty-one ceramic dog figurines were discovered during the excavating of a 1,000-year-old Hohokam village in Tempe, Arizona, has nearly doubled the number of these artifacts known to exist.
That twenty-one ceramic dog figurines were discovered during the excavating
Twenty-one ceramic dog figurines discovered at the excavation
Discovering twenty-one ceramic dog figurines at the excavating
Ceramic dog figurines, twenty-one of which were discovered during excavating
E The discovery of twenty-one ceramic dog figurines during the excavation
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Q22:
City Official: At City Hospital, uninsured patients tend to have shorter stays and fewer procedures performed than do insured patients, even though insured patients, on average, have slightly less serious medical problems at the time of admission to the hospital than uninsured patients have. Critics of the hospital have concluded that the uninsured patients are mot receiving proper medical care. However, this conclusion is almost certainly false. Careful investigation has recently shown two things: insured patients have much longer stays in the hospital than necessary, and they tend to have more procedures performed than are medically necessary.
In the city official’s argument, the two boldface portions play which of the following roles?
The first states the conclusion of the city official’s argument; the second provides support for that conclusion.
The first is used to support the conclusion of the city official’s argument; the second states that conclusion.
The first was used to support the conclusion drawn by hospital critics; the second states the position that the city official’s argument opposes.
The first was used to support the conclusion drawn by hospital critics; the second provides support for the conclusion of the city official’s argument.
The first states the position that the city official’s argument opposes; the second states the conclusion of the city official’s argument.
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Q23:
Past assessments of the Brazilian rain forest have used satellite images to tally deforested areas, where farmers and ranchers have clear-cut and burned all the trees, but such work has not addressed either logging, which is the removal of only selected trees, as well as surface fires, burning down individual trees but do not denude the forest.
which is the removal of only selected trees, as well as surface fires, burning
which removes only selected trees, or surface fires that burn
which removes only selected trees, along with surface fires that burn
removing only selected trees, or surface fires, burning
removing only selected trees, as well as surface fires that burn
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Q24:
By sucking sap from the young twigs of the hemlock tree, tree growth is retarded by the woolly adelgid, causing needles to change color from deep green to grayish green and to drop prematurely.
tree growth is retarded by the woolly adelgid, causing needles to change color from deep green to grayish green and to drop
tree growth is retarded by the woolly adelgid, and this causes the color of needles to change from deep green to grayish green, and their dropping
the woolly adelgid retards tree growth, which causes needles to change color from deep green to grayish green, and dropping
the woolly adelgid retards tree growth, causing needles to change color from deep green to grayish green and to drop
the woolly adelgid retards tree growth, and this causes the color of needles to change from deep green to grayish green, and the their dropping
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