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PREP07 Test 1
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Which of the following best summarizes the central idea of the passage?
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PREP07 Test 1
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If x =$$\frac{1}{2}$$, is y equal to 1 ?
(1) $$y^2(x+\frac{1}{2})=1$$
(2) y ( 2x – 1 ) = 2x - y
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PREP07 Test 1
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If $${x}^{4}+{y}^{4}$$ = 100, then the greatest possible value of x is between
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PREP07 Test 1
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More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
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PREP07 Test 1
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When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward.Which of the following hypotheses is best supported by the statements given?
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PREP07 Test 1
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It can be inferred from the passage that proponents of the second argument would most likely agree with which of the following statements?
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PREP07 Test 1
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During an experiment, some water was removed from each of 6 water tanks. If the standard deviation of the volumes of
water in the tanks at the beginning of the experiment was 10 gallons, what was the standard deviation of the volumes of water in the tanks at the end of the experiment?(1) For each tank, 30 percent of the volume of water that was in the tank at the beginning of the experiment was removed during the experiment.(2) The average (arithmetic mean) volume of water in the tanks at the end of the experiment was 63 gallons.
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PREP07 Test 1
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Of the following, which is least?
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PREP07 Test 1 OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Hundreds of species of fish generate and discharge electric currents, in bursts or as steady electric fields around their bodies, using their power either to find and attack prey, to defend themselves, or also for communicating and navigating.
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PREP07 Test 1
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For several years, per capita expenditure on prescription drugs in Voronia rose by fifteen percent or more annually. In order to curb these dramatic increases, the ministry of health prohibited drug manufacturers from raising any of their products' prices. Even though use of prescription drugs did not expand after this price freeze, per capita expenditure for prescription drugs continued to increase by a substantial percentage each year.Which of the following, if true, most helps to explain why the ministry's action did not achieve its goal?
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PREP07 Test 1
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Which of the following claims concerning the United States government's financing of the deficit does the author make in discussing the second argument?
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PREP07 Test 1
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If p and n are positive integers and p > n, what is the remainder when $$p^2 - n^2$$is divided by 15 ?
(1) The remainder when p + n is divided by 5 is 1.
(2) The remainder when p - n is divided by 3 is 1.
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PREP07 Test 1
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What is the sum of the different positive prime factors of 550 ?
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PREP07 Test 1
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In laboratory rats, a low dose of aspirin usually suffices to block production of thromboxane, which is a substance that promotes blood clotting, but not seriously interfering with the production of prostacyclin, which prevents clotting.
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PREP07 Test 1 GWD OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Which of the following most logically completes the argument?The last members of a now-extinct species of a European wild deer called the giant deer lived in Ireland about 16,000 years ago. Prehistoric cave paintings in France depict this animal as having a large hump on its back. Fossils of this animal, however, do not show any hump. Nevertheless, there is no reason to conclude that the cave paintings are therefore inaccurate in this regard, since __________.
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PREP07 Test 1
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The author uses the term "admittedly" (see highlighted text) in order to indicate that
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PREP07 Test 1
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If x is positive, is x > 3 ?
(1)$${(x-1)}^2\gt4$$
(2)$${(x-2)}^2\gt9$$
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PREP07 Test 1
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In a certain deck of cards, each card has a positive integer written on it. In a multiplication game, a child draws a card and multiplies the integer on the card by the next larger integer. If each possible product is between 15 and 200, then the least and greatest integers on the cards could be
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PREP07 Test 1 OG18-文本逻辑 OG19-文本逻辑
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Thomas Eakins' powerful style and his choices of subject-the advances in modern surgery, the discipline of sport,the strains of individuals in tension with society or even with themselves-was as disturbing to his own time as it is compelling for ours.
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PREP07 Test 1
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Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. Vernon, Inc., a small manufacturing company that has in recent years experienced a decline in its profits, plans to boost its profits by outsourcing those parts of its business that independent suppliers can provide at lower cost than Vernon can itself.Which of the following, if true, most strongly supports the prediction that Vernon's plan will achieve its goal?
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