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OG19 OG20 OG2022
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To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
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OG19 OG20 OG2022
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According to a recent study, retirees in the United States are four times more likely to give regular financial aid to their children as to receive it from them.
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OG19 OG20 OG2022
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The Commerce Department reported that the nations economy grew at a brisk annual pace of 3.7 percent in the second quarter, but that while businesses were expanding their production, unsold goods piled up on store shelves as consumer spending is slowed sharply.
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OG19 OG20 OG2022
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The Eastern State Penitentiary was established in 1822 by reformers advocating that prisoners be held in solitary confinement and hard labor so as to reform them.
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OG19 OG20 OG2022
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Through experimenting designed to provide information that will ultimately prove useful in the treatment of hereditary diseases, mice have received bone marrow transplants that give them a new gene
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OG19-语文分册 OG20-语文分册
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Variability in individual physical traits both are determined through genetic factors, environmental factors, and interaction between these factors.
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OG19-语文分册 OG20-语文分册
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A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people under criminal investigation but have not yet been charged.
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OG19-语文分册 OG20-语文分册
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The World Wildlife Fund has declared that global warming, a phenomenon that most scientists agree is caused by human beings' burning of fossil fuels, will create havoc among migratory birds by harming their habitats as a result of altering the environment.
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OG19-语文分册 OG20-语文分册
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Tropical bats play an important role in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help the producing of tequila by pollinating agave plants.
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OG19-语文分册 OG20-语文分册
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Because of the sharp increases in the price of gold and silver, the value of Monica Taylor's portfolio rose as her daughter-in-law's dropped.
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OG19-语文分册 OG20-语文分册
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Cocoa grown organically on trees within the shade of the rain forest canopy commands a premium price. However, acquiring and maintaining the certification that allows the crop to be sold as organically grown is very time-consuming and laborious. Meanwhile, the price premium for the grower is about 30 percent, whereas cocoa trees grown in full sun using standard techniques can have twice the yield of organic, shade-grown trees.Financially, therefore, standard techniques are the better choice for the farmer.Which of the following,if true, most seriously weakens the arguement?
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both X and Y are more than 0，is X<70？
1）4y+3x<200
2）6y+5x<340
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OG19-语文分册 OG20-语文分册
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[line:25:enable]Which of the following best describes the function of the sentence in lines 25-28 in the context of the passage as a whole?
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OG19-语文分册 OG20-语文分册
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It can be inferred from the passage that the research mentioned in line 29 supports which of the following statements?
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OG19-语文分册 OG20-语文分册
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Which of the following best describes the relationship between the first and the second paragraph of the passage?
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OG19-语文分册 OG20-语文分册
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The author of the passage mentions observations regarding the period of a double-star system as being useful for determining
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OG19-语文分册 OG20-语文分册
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Tanco, a leather manufacturer, uses large quantities of common salt to preserve animal hides. New environmental regulations have significantly increased the cost of disposing of salt water that results from this use, and, in consequence, Tanco is considering a plan to use potassium chloride in place of common salt. Research has shown that Tanco could reprocess the by-product of potassium chloride use to yield a crop fertilizer, leaving a relatively small volume of waste for disposal.
In determining the impact on company profits of using potassium chloride in place of common salt, it would be important for Tanco to research all of the following EXCEPT:
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OG19-数学分册
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The toll T, in dollars, for a truck using a certain bridge is given by the formula $$ T = 1.50 + 0.50(x - 2)$$ , where x is the number of axles on the truck. What is the toll for an 18-wheel truck that has 2 wheels on its front axle and 4 wheels on each of its other axles?
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OG19-数学分册
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For what value of x between -4 and 4, inclusive, is the value of $$x^{2} - 10x + 16$$ the greatest?
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OG19-数学分册
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For positive integers a and b, the remainder when a is divided by b is equal to the remainder when b is divided by a. Which of the following could be a value of ab?
I. 24
II. 30
Ill. 36
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