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OG2022 判断以下文段中，哪些信息是事实，哪些信息是观点? 事实选F，观点选O The question has been raised whether it can be concluded that for a given level of output Delta's operation now causes less fossil fuel to be consumed than it did formerly.
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Antitrust laws — statutes that supposedly keep any one firm or group of firms from dominating the marketplace — are thought by some to be the bulwark of free enterprise. These laws are founded on the idea that without the continued vig

ilance of the government, large corporations would ruthlessly destroy their smaller rivals and then raise prices and profits at consumers` expense. But antitrust has a dark side; it often is used to the detriment of the consumers it`s supposed to protect.

In theory, antitrust laws should prevent anticompetitive mergers that harm the public interest, but in practice, they are often misused to obstruct competition. In fact, in several instances they end up harming the very companies they were supposed to protect

. Collectively, such laws not only have a negative effect on economic efficiency, but also negatively affect the appropriate distribution of wealth and income in society and the allocation of political and consumer power and rights.

Often, antitrust laws are fluid, non-objective and retroactive. Because of murky statutes and conflicting case law, companies can never be sure what constitutes permissible behavior. Normal business practices — price discounts, product improvements and exclusive contracting — can somehow morph into an antitrust violation when examined by government antitrust regulators. Companies can be accused of monopolistic price gouging for charging more than their competitors, or accused of predatory pricing for charging less, or accused of collusion for charging the same.

In one of the most brazen examples of misuse of antitrust laws for competitive and strategic benefit, Digital Equipment Corp. filed a lawsuit against Intel in 1990, when the firm`s attempt to persuade Intel to incorporate Digital Equipment`s technology as part of its next-generation chip design ended in failure. Alpha, then Digital`s flagship product, was at the time the fastest chip in the industry. In spite of Alpha`s relative superiority, more computers, including computers manufactured by Digital itself, employed Intel`s lower-powered Pentium chip than Digital`s counterpart. In 1997, Digital threatened Intel with antitrust action in a bold attempt to reposition itself in the computer industry. Robert B. Palmer, Digital`s chief executive, denied analysts` suggestions that the lawsuit was in fact a veiled strategic effort to prevent Intel from developing competing technology in the microprocessor market.
OG18-数学分册 Andrew started saving at the beginning of the year and had saved $240 by the end of the year. He continued to save and by the end of 2 years had saved a total of $540. Which of the following is closest to the percent increase in the amount Andrew saved during the second year compared to the amount he saved during the first year?
OG18 OG19 OG20 OG2022 A manufacturer makes and sells 2 products, P and Q. The revenue from the sale of each unit of P is $20.00 and the revenue from the sale of each unit of Q is $17.00. Last year the manufacturer sold twice as many units of Q as P. What was the manufacturer's average (arithmetic mean ) revenue per unit sold of these 2 products last year?
Pumping alone at their respective constant rates, one inlet pipe fills an empty tank to $$\frac{1}{2}$$  of capacity in 3 hours and a second inlet pipe fills the same empty tank to $$\frac{2}{3}$$ of capacity in 6 hours. How many hours will it take both pipes, pumping simultaneously at their respective constant rates, to fill the empty tank to capacity?
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The people in a room are lined up from youngest to oldest. The age of the first person is 15, and the each person thereafter is two years older than the previous person. What is the sum of ages?

  1. The number of people in the room is 37.
  2. The age of the last person is 87.
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In 2009, Marcos placed a total of $26,000 in 23 different investments. In 2010, he placed additional funds  into two new investments. For all 25 investments, is the average (arithmetic mean) amount of money per investment less than $1,200?

  1. Each investment added in 2010 contained more than $1,000.
  2. Each investment added in 2010 contained less than $1,500.
PREP07 Test 2 Traditionally, decision making by managers that is reasoned step-by-step has been considered preferable to intuitive decision making.However, a recent study found that top managers used intuition significantly more than did most middle-or lower-level managers.This confirms the alternative view that intuition is actually more effective than careful, methodical reasoning.The conclusion above is based on which of the following assumptions?
OG12 OG15 OG16 Although computers can enhance people's ability to communicate, computer games are a cause of underdeveloped communication skills in children. After-school hours spent playing computer games are hours not spent talking with people. Therefore, children who spend all their spare time playing these games have less experience in interpersonal communication than other children have.The argument depends on which of the following assumptions?
GWD The state religion of ancient China, which came into existence at least as far back as the Han Dynasty (206 B .C . to A .D . 220) and perhaps as early as the Western Zhou Dynasty (1050 B .C . to 771 B .C .), allowed only emperors performing the ritual worship of heaven, perceiving them as special links between the earthly and celestial realms.
An airplane engine manufacturer developed a new engine model with safety features lacking in the earlier model, which was still being manufactured. During the first year that both were sold, the earlier model far outsold the new model; the manufacturer thus concluded that safety was not the customers' primary consideration.Which of the following, if true, would most seriously weaken the manufacturer's conclusion?
An equal number of desks and bookcases are to be placed along a library wall that is 15 meters long. Each desk is 2 meters long, and each bookshelf is 1.5 meters long. If the maximum possible number of desks and bookcases are to be placed along the wall, then the space along the wall that is left over will be how many meters long?
PREP07 Test 1 Before being simplified, the instructions for computing income tax in Contry R were to add 2 percent of one's annual income to the average (arithmetic mean) of 100 unit of Contry R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in Country R's currency, for a person in that whose annual income is I?
OG17 OG18 OG19 OG20 OG2022 A certain experimental mathematics program was tried out in 2 classes in each of 32 elementary schools and involved 37 teachers. Each of the classes had 1 teacher and each of the teachers taught at least 1, but not more than 3, of the classes. If the number of teachers who taught 3 classes is n, then the least and greatest possible values of n, respectively, are
PREP07 Test 2 There are two types of rolls on a counter, plain rolls and seeded rolls. What is the total number of rolls on the counter? (1) The ratio of the number of seeded rolls on the counter to the number of plain rolls on the counter is 1 to 5. (2) There are 16 more plain rolls than seeded rolls on the counter.
PREP07 Test 2 Of the 20 people who each purchased 2 tickets to a concert, some used both tickets, some used only 1 ticket, and some used neither ticket. What percent of the tickets that were purchased by the 20 people were used by those people? (1) Of the 20 people, 10 used only 1 ticket.(2) Of the 20 people, 4 used neither ticket.
Manhattan In a certain fishery that contains only speckled and rainbow trout, the number of male speckled trout is 45 more than twice the number of female speckled trout. 645 total speckled trout live in the fishery. If the ratio of female speckled trout to male rainbow trout is 4:3 and there are 1000 total trout in the fishery, how many female rainbow trout are there?
190321 Every number in the set S is different. The set S contains all the solutions to (n-3)(n-5)(n-8) = 0. If a number will be picked from the set, what is the probability that this number satisfies the equation (n-3)(n-5)(n-8) = 0?
1: The numbers in the set are continuous.
2: There are 20 numbers in the set.
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Three carpenters , , and working simultaneously and independently at their respective constant rates, can build a shed in 8 hours. How long does it take Carpenter , working alone at a constant rate, to build the shed?

(1) Carpenters and , working simultaneously and independently at their respective constant rates, can build the shed in 12 hours.

(2) Carpenters and , working simultaneously and independently at their respective constant rates, can build the shed in 16 hours.
OG15 OG16 OG17 The following appeared as part of an article in a trade magazine for breweries:"Magic Hat Brewery recently released the results of a survey of visitors to its tasting room last year. Magic Hat reports that the majority of visitors asked to taste its low-calorie beers. To boost sales, other small breweries should brew low-calorie beers as well."Discuss how well reasoned you find this argument. In your discussion be sure to analyze the line of reasoning and the use of evidence in the argument. For example, you may need to consider what questionable assumptions underlie the thinking and what alternative explanations or counterexamples might weaken the conclusion. You can also discuss what sort of evidence would strengthen or refute the argument, what changes in the argument would make it more logically sound, and what, if anything, would help you better evaluate its conclusion.