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OG18-语文分册
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In order to reduce dependence on imported oil, the government of Jalica has imposed minimum fuel-efficiency requirements on all new cars, beginning this year. The more fuel-efficient a car, the less pollution it produces per mile driven. As Jalicans replace their old cars with cars that meet the new requirements, annual pollution from car traffic is likely to decrease in Jalica.Which of the following, if true, most seriously weakens the argument?
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OG18-语文分册
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Colorless diamonds can command high prices as gemstones. A type of less valuable diamonds can be treated to remove all color. Only sophisticated tests can distinguish such treated diamonds from naturally colorless ones. However, only 2 percent of diamonds mined are of the colored type that can be successfully treated, and many of those are of insufficient quality to make the treatment worthwhile. Surely, therefore, the vast majority of colorless diamonds sold by jewelers are naturally colorless.A serious flaw in the reasoning of the argument is that
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OG18-语文分册
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Urban planner: When a city loses population due to migration, property taxes in that city tend to rise. This is because there are then fewer residents paying to maintain an infrastructure that was designed to support more people. Rising property taxes, in turn, drive more residents away, compounding the problem. Since the city of Stonebridge is starting to lose population, the city government should therefore refrain from raising property taxes. Which of the following, if true, would most weaken the urban planner's argument?
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OG18-语文分册 OG19-语文分册 OG20-语文分册
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Government officials announced that restrictions on the use of water would continue because no appreciative increase in the level of the river resulted from the intermittent showers that had fallen throughout the area the day before.
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OG18-语文分册
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[line:11:enable]Which of the following best describes the primary function of lines 11?
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OG18-语文分册
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Which of the following can be inferred from the passage about evidence pertaining to the fur trade between Native Americans and Europeans in the early modern era?
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OG18-语文分册
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It can be inferred from the passage that the author would agree with which of the following statements about the fur trade between Native Americans and Europeans in the early modern era?
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OG18-语文分册
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[line:24:enable]Which of the following can be inferred from the passage about the Native Americans mentioned in line 24?
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OG18-语文分册
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The passage is primarily concerned with
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OG18 OG19 OG20 OG2022
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It can be inferred that the author of the passage would agree with which of the following statements about the appeal of service guarantees to customers?
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OG18
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According to the passage, the difference in the amount of cratering on Callisto's and lo's respective surfaces can probably be explained by the difference between these two moons with respect to which of the following factors?
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OG18 OG19 OG20 OG2022
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.png) In the figure shown, AC = 2 and BD=DC=1. What is the measure of angle ABD?
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OG18 OG19 OG20 OG2022
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If m and p are positive integers and$$ m^{2} + p^{2} < 100$$, what is the greatest possible value of mp ?
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OG18 OG19 OG20 OG2022
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 The light in a restroom operates with a 15-minute timer that is reset every time the door opens as a person goes in or out of the room. Thus, after someone enters or exits the room, the light remains on for only 15 minutes unless the door opens again and resets the timer for another 15 minutes. If the times listed above are the times at which the door opened from 8:00 to 10:00, approximately how many minutes during this two-hour period was the light off?
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OG18-数学分册
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If m and n are nonzero integers, is $$m^{n}$$ an integer?(1) $$n^{m}$$ is positive.(2) $$n^{m}$$ is an integer.
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OG18 OG19 OG20 OG2022
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 Kim and Sue each bought some roses and some daisies at the prices shown above. If Kim bought the same total number of roses and daisies as Sue, was the price of Kim's purchase of roses and daisies higher than the price of Sue's purchase of roses and daisies?(1) Kim bought twice as many daisies as roses.(2) Kim bought 4 more roses than Sue bought.
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OG18 OG19 OG20 OG2022
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Jazz and blues recordings accounted for 6 percent of the $840 million revenue from the sales of recordings in Country Y in 2000. What was the revenue from the sales of jazz and blues recordings in Country Y in 1998?(1) Jazz and blues recordings accounted for 5 percent of the revenue from the sales of recordings in Country Y in 1998.(2) The revenue from the sales of jazz and blues recordings in Country Y increased by 40 percent from 1998 to 2000.
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OG18-语文分册 OG19-语文分册 OG20-语文分册
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Over a range of frequencies from 100 to 5,000 hertz, monkeys and marmosets have a hearing sensitivity remarkably similar to humans , above which the sensitivity begins to differ.
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OG18-语文分册 OG19-语文分册 OG20-语文分册
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By using a process called echolocation to analyze the echoes of the high-pitched sounds they produce, bats can determine not only the distance to an object, but they also can determine its shape and size and the direction in which it is moving.
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OG18-语文分册 OG19-语文分册 OG20-语文分册
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Industry analysts said that the recent rise in fuel prices may be an early signal of the possibility of gasoline and heating oil prices staying higher than usually through the end of the year.
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