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GWD PREP2012	Which of the following most logically completes the passage?Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.
GWD PREP08 Test 1	Which of the following most logically completes the argument below?According to promotional material published by the city of Springfield, more tourists stay in hotels in Springfield than stay in the neighboring city of Harristown. A brochure from the largest hotel in Harristown claims that more tourists stay in that hotel than stay in the Royal Arms Hotel in Springfield. If both of these sources are accurate, however, the county's "Report on Tourism" must be in error in indicating that _______.
OG17	The numbers x and y are three-digit positive integers, and x + y is a four-digit integer. The tens digit of x equals 7 and the tens digit of y equals 5. If x < y, which of the following must be true?I.The units digit of x + y is greater than the units digit of either x or y.II.The tens digit of x + y equals 2.III.The hundreds digit of y is at least 5.
	A certain wooded lot contains 56 oak trees. How many pine trees does the lot contain?(1)The ratio of the number of oak trees to the number of pine trees in the lot is 8 to 5.(2)If the number of oak trees were increased by 4 and the number of pine trees remained unchanged, the ratio of the number of oak trees to the number of pine trees in the lot would be 12 to 7.
GWD PREP2012	The Earth's rivers constantly carry dissolved salts into its oceans. Clearly, therefore, by taking the resulting increase in salt levels in the oceans over the past hundred years and then determining how many centuries of such increases it would have taken the oceans to reach current salt levels from a hypothetical initial salt-free state, the maximum age of the Earth's oceans can be accurately estimated.Which of the following is an assumption on which the argument depends?
Ready4	People who consume caffeine within six hours of going to sleep are shown to have less restful sleep than those who abstain from caffeine. Short daytime naps usually improve performance and alertness in adults. However, study subjects who consume caffeine immediately before a short afternoon nap performed better on tests and felt more alert after the nap than others who simply took naps. Which of the following, if true, best reconciles the apparent discrepancy described above?
Ready4	Laws making it more difficult to discharge debt can reduce the rates of bankruptcy. However, because some debtors have no recourse but to file for bankruptcy, those laws should only apply in circumstances where discharging debt is unnecessary. In fact, the only individuals who should be subject to those laws are those for whom declaring bankruptcy would be a form of fraud. Which of the following conclusions could be most properly drawn from the information given above?
OG2022	Which of the following most logically completes the passage? The figures in portraits by the Spanish painter El Greco (1541-1614) are systematically elongated. In El Greco's time, the intentional distortion of human figures was unprecedented in European painting. Consequently, some critics have suggested that El Greco had an astigmatism, a type of visual impairment, that resulted in people appearing to him in the distorted way that is characteristic of his paintings. However, this suggestion cannot be the explanation, because _________ .
PREP07 Test 2	On Pacific islands, a newly arrived gecko species, the house gecko, is displacing the previously established mourning gecko in urban areas, but populations of the two species are more stable in rural areas far from human settlement. The house gecko does not attack the mourning gecko, but in areas where insects congregate it prevents the mourning gecko from feeding on them.Which of the following contributes most to an explanation of the difference between gecko populations in urban and rural areas?
KMFPS	A photographer will arrange 6 people of 6 different heights for photograph by placing them in two rows of three so that each person in the first row is standing in front of someone in the second row. The heights of the people within each row must increase from left to right, and each person in the second row must be taller than the person standing in front of him or her. How many such arrangements of the 6 people are possible?
	Color X ink is created by blending red, blue, green, and yellow inks in the ratio 6 : 5 : 2 : 2. What is the number of liters of green ink that was used to create a certain batch of color X ink?(1)The amount of red ink used to create the batch is 2 liters more than the amount of blue ink used to create the batch.(2)The batch consists of 30 liters of color X ink.
	A certain club has 10 members, including Harry. One of the 10 members is to be chosen at random to be the president, one of the remaining 9 members is to be chosen at random to be the secretary, and one of the remaining 8 members is to be chosen at random to be the treasurer. What is the probability that Harry will be either the member chosen to be the secretary or the member chosen to be the treasurer?
	Which of the following most logically completes the passage?The figures in portraits by the Spanish painter El Greco (1541-1614) are systematically elongated. In El Greco's time, the intentional distortion of human figures was unprecedented in European painting. Consequently, some critics have suggested that El Greco had an astigmatism, a type of visual impairment, that resulted in people appearing to him in the distorted way that is characteristic of his paintings. However, this suggestion cannot be the explanation, because _________ .
	Health care costs can be managed more effectively if companies intervene in the supply side of health care delivery just as they do with other key suppliers: strategies used to procure components necessary for production would work in procuring health care. For example, the make/buy decision - the decision whether to produce or purchase parts used in making a product - can be applied to health care. 第一句和第二句之间的关系是：
GWD	Which of the following most logically completes the argument below?According to promotional material published by the city of Springfield, more tourists stay in hotels in Springfield than stay in the neighboring city of Harristown. A brochure from the largest hotel in Harristown claims that more tourists stay in that hotel than stay in the Royal Arms Hotel in Springfield. If both of these sources are accurate, however, the county's "Report on Tourism" must be in error in indicating that _______.
Ready4	A room has length $x$ , width $y$ , and height $z$ . What is the volume of the room? (1) $x=\frac{1600}{yz}$ (2) $y=20$ and $z=8$
Ready4	Within a class, 50 percent of students are members of Club #30 and 60 percent are members of Club #50. If 30 percent of the members of Club #50 are members of Club #60, how many of the members of Club #60 are members of Club #50? One hundred of the students are members of Club #30. Twenty-five percent of the non-members of Club #50 are members of Club #60.
Ready4	If $l$ and $w$ represent the length and width, respectively, of a rectangle, then what is the perimeter? (1) $w + l = 85$ (2) $2w + l = 110$
Ready4	In the coordinate plane, point $(x,y)$ lies on a circle with center at the origin. What is the value of $x^2+y^2$ ? (1) The circle has radius $3\sqrt{2}$ . (2) The point $(-3,3)$ lies on the circle.
Ready4	In the coordinate plane, point $(x,y)$ lies on a circle with center at the origin. What is the value of $x^2+y^2$ ? (1) The point $(5,-3)$ lies on the circle. (2) The circle has radius $\sqrt{34}$ .