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OG20 OG2022
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Is the sum of four particular integers even?
1.Two of the integers are odd and two are even.
2.The average (arithmetic mean) of the four integers is an integer.
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OG20 OG2022
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Is the average (arithmetic mean) of the numbers x, y, and z greater than z ?
1.z – x < y – z
2.x < z < y
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OG20 OG2022
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The figure above represents a box that has the shape of a cube. What is the volume of the box?
1.PR = 10 cm
2.$$QT = 5 \sqrt{6}cm$$
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OG20 OG2022
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Is quadrilateral PQRS a parallelogram?
1.Adjacent sides PQ and QR have the same length.
2.Adjacent sides RS and SP have the same length.
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OG20 OG2022
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In the figure above, PQRT is a rectangle. What is the length of segment PQ ?
1.The area of region PQRS is 39 and TS = 6.
2.The area of region PQRT is 30 and QR = 10.
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OG20 OG2022
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If a and b are integers, and b > 0, does $$\frac{a-1}{b+1}=\frac{a}{b}$$
1.$$a = b – 4$$
2.$$a = –b$$
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OG20 OG2022
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Is x an integer?
1.$$x^{3} = 8$$
2.$$x = \sqrt{4}$$
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OG20 OG2022
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A paint mixture was formed by mixing exactly 3 colors of paint. By volume, the mixture was x% blue paint, y% green paint, and z% red paint. If exactly 1 gallon of blue paint and 3 gallons of red paint were used, how many gallons of green paint were used?
1.x = y
2.z = 60
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OG20 OG2022
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Three children inherited a total of X dollars. If the oldest child inherited $7,000 more than the youngest child, and the youngest child inherited $9,000 less than the middle child, what is the value of X ?
1.The middle child inherited $27,000.
2.The youngest child and the middle child together inherited a total of $45,000.
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OG20 OG2022
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On a map,$$\frac{1}{2}$$ inch represents 100 miles. According to this map, how many miles is City X from City Y ?
1.City X is 3 inches from City Y on the map.
2.Cities X and Y are each 300 miles from City Z.
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OG20 OG2022
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The length, width, and height of a rectangular box, in centimeters, are L, W, and H. If the volume of this box is V cubic centimeters and the total area of the 6 sides of this box is A square centimeters, what is the value of $$\frac{V}{A}$$?[br/[
1.At least 2 of L, W, and H are equal to 5.
2.L, W, and H all have the same value.
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OG20 OG2022
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If a school district paid a total of $35 per desk for x desks and a total of $30 per table for y tables, what was the total amount that the district paid for these desks and tables?
1.The total amount the district paid for the y tables was $900.
2.x = 90, and the total amount the district paid for the x desks was 3.5 times the total amount the district paid for the y tables.
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OG20 OG2022
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Three roommates—Bela, Gyorgy, and Janos—together saved money for a trip. The amount that Bela saved was equal to 8% of his monthly income. The amount that Gyorgy saved was exactly $$\frac{1}{3}$$ of the total amount saved by all 3 roommates. What was the total amount saved for the trip by all 3 roommates?
1.Bela had a monthly income of $2,000.
2.Janos saved 1.5 times as much for the trip as Bela.
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OG20 OG2022
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What is the remainder when the positive integer n is divided by 5 ?
1.When n is divided by 3, the quotient is 4 and the remainder is 1.
2.When n is divided by 4, the remainder is 1.
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OG19-语文分册 OG20-语文分册
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The passage suggests that, in the early 1990s, Michaels would have been most likely to agree with which of the following statements about the disparity mentioned in the lines 3-4?
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OG19-语文分册 OG20-语文分册
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According to the passage, Santer asserts which of the following about global warming?
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Micro-wear patterns found on the teeth of longextinct specimens of the primate species australopithecine may provide evidence about their diets. For example, on the basis of tooth micro-wea patterns, Walker dismisses Jolly's hypothesis that australopithecines ate hard seeds. He also disputes Szalay's suggestion that the heavy enamel of australopithecine teeth is an adaptation to bone crunching, since both seed cracking and bone crunching produce distinctive micro-wear characteristics on teeth. His conclusion that australopithecines were frugivores (fruit eaters) is based upon his observation that the tooth micro- wear characteristics of east African australopithecine specimens are indistinguishable from those of chimpanzees and orangutans, which are commonly assumed to be frugivorous primatesHowever, research on the diets of contemporary primates suggests that micro-wear studies may have limited utility in determining the foods that are actually eaten. For example, insect eating, which can cause distinct micro-wear patterns, would not cause much tooth abrasion in modern baboons, who eat only soft-bodied insects rather than hard-bodied insects. In addition, the diets of current omnivorous primates vary considerably depending on the environments that different groups within a primate species inhabit; if
australopithecines were omnivores too, we might expect to find considerable population variation in their tooth micro-wear patterns. Thus, Walker's description of possible australopithecine diets may need to be expanded to include a much more diverse diet.
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OG19-语文分册 OG20-语文分册
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The passage suggests that which of the following would be true of studies of tooth micro-wear patterns conducted on modern baboons?
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OG19-语文分册 OG20-语文分册
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The passage suggests that Walker's research indicated which of the following about australopithecine teeth?
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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 if studies of tooth micro-wear patterns were conducted on modern baboons, which of the following would most likely be true of the results obtained?
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