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PREP07 Test 2 PREP08 Test 2	It can be inferred from the passage that which of the following would constitute the strongest evidence of the microlensing of a star in the Large Magellanic Cloud?
PREP07 Test 2	A certain list consists of several different integers. Is the product of all the integers in the list positive? (1) The product of the greatest and smallest of the integers in the list is positive. (2) There is an even number of integers in the list.
PREP07 Test 2	At the end of each year, a certain credit card company pays a bonus to each of its credit card holders based on the amount, up to $10,000, that the cardholder charged throughout the year. A 0.5 percent bonus is paid on the first $1,000 charged, a 1.0 percent bonus is paid on the next $2,000 charged and so on, as indicated in the table above. What is the maximum annual bonus, in dollars?
PREP07 Test 2	The ecosystems of barrier islands are extremely vulnerable--whether from natural processes like shoreline recession, rising sea levels, and destructive hurricanes, or the ever-increasing pressures of development.
PREP07 Test 2	Since the deregulation of airlines, delays at the nation's increasingly busy airports have increased by 25 percent.To combat this problem, more of the takeoff and landing slots at the busiest airports must be allocated to commercial airlines.Which of the following, if true, casts the most doubt on the effectiveness of the solution proposed above?
PREP07 Test 2	A certain store sells chairs individually or in sets of 6. The store charges less for purchasing a set of 6 chairs than for purchasing 6 chairs individually. How much does the store charge for purchasing a set of 6 chairs? (1) The charge for purchasing a set of 6 chairs is 10 percent less than the charge for purchasing the 6 chairs individually. (2) The charge for purchasing a set of 6 chairs is $20 more than the charge for purchasing 5 chairs individually.
PREP07 Test 2	If p, q, r, and s are as shown on the number line above, which of the following products is greatest?
PREP07 Test 2	If current trends continue, by the year 2010 carbon emissions in the United States will soar to a level more than one-third higher than were those in 1990, according to official projections.
PREP07 Test 2	The proposal to hire ten new police officers in Middletown is quite foolish. There is sufficient funding to pay the salaries of the new officers, but not the salaries of additional court and prison employees to process the increased caseload of arrests and convictions that new officers usually generate.>Which of the following, if true, will most seriously weaken the conclusion drawn above?
PREP07 Test 2	The cost of picture frame M is $10.00 less than 3 times the cost of picture frame N. If the cost of frame M is $50.00, what is the cost of frame N ?
PREP07 Test 2	If $$k \neq 0, 1, or -1$$, is $$ \frac{1}{k}$$ > 0 ?(1)$$ {1\over{(k-1)}} > 0$$(2)$$ {1\over{(k+1)}} > 0$$
PREP07 Test 2	An international group of more than 2,000 scientists project an average global warming that will be between 1.8 and 6.3 degrees Fahrenheit by the year 2000.
PREP07 Test 2	Bank depositors in the United States are all financially protected against bank failure because the government insures all individuals' bank deposits.An economist argues that this insurance is partly responsible for the high rate of bank failures, since it removes from depositors any financial incentive to find out whether the bank that holds their money is secure against failure.If depositors were more selective.then banks would need to be secure in order to compete for depositors' money.Which of he following, if true, most seriously weakens the economist s argument?
PREP07 Test 2	The value of $$(-89)^\frac{1}{3}$$ is
PREP07 Test 2	Does the integer k have a factor p such that 1 < p < k ?(1) k > 4!(2) $$13! + 2 \le k \le 13! + 13$$
PREP07 Test 2	Pioneered by scientists at Los Alamos National Laboratory, BEAM robots are not programmed to walk; instead they use brainlike circuits called neural networks to learn to walk through trial and error.
PREP07 Test 2 OG18-文本逻辑	Large national budget deficits do not cause large trade deficits.If they did, countries with the largest budget deficits would also have the largest trade deficits.In fact, when deficit figures are adjusted so that different countries are reliably comparable to each other, there is no such correlation.If the statements above are all true, which of the following can properly be inferred on the basis of them?
PREP07 Test 2	A computer chip manufacturer expects the ratio of the number of defective chips to the total number of chips in all future shipments to equal the corresponding ratio for shipments S1, S2, S3, and S4 combined, as shown in the table above. What is the expected number of defective chips in a shipment of 60,000 chips?
PREP07 Test 2	When the positive integer n is divided by 25, the remainder is 13. What is the value of n ?(1) n < 100(2) When n is divided by 20, the remainder is 3.
PREP07 Test 2 GWD	Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.