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OG2016-CR-14 | OG2017-CR-557 | OG2015-CR-9 | OG13-CR-9 | OG2022-CR-5 有讲解

While many people think of genetic manipulation of food crops as being aimed at developing larger and larger plant varieties, some plant breeders have in fact concentrated on discovering or producing dwarf varieties, which are roughly half as tall as normal varieties.

Which of the following would, if true, most help to explain the strategy of the plant breeders referred to above?


OG2016-CR-13 | OG2015-CR-7 | OG12-CR-6 | OG13-CR-7

The amount of time it takes for most of a worker's occupational knowledge and skills to become obsolete has been declining because of the introduction of advanced manufacturing technology (AMT). Given the rate at which AMT is currently being introduced in manufacturing, the average worker's old skills become obsolete and new skills are required within as little as five years.

Which of the following plans, if feasible, would allow a company to prepare most effectively for the rapid obsolescence of skills described above?


OG2016-CR-12 | OG2017-CR-556 | OG2015-CR-5 | OG13-CR-5 | OG12-CR-5 有讲解

A company is considering changing its policy concerning daily working hours. Currently, this company requires all employees to arrive at work at 8 a.m. The proposed policy would permit each employee to decide when to arrive—from as early as 6 a.m. to as late as 11 a.m.

The adoption of this policy would be most likely to decrease employees' productivity if the employees' job functions required them to


OG2016-CR-10 | OG2017-CR-554 | OG2015-CR-13 | OG13-CR-13 | OG12-CR-9 | OG2018-CR-557 有讲解

In order to reduce the number of items damaged while in transit to customers, packaging consultants recommended that the TrueSave mail-order company increase the amount of packing material so as to fill any empty spaces in its cartons. Accordingly, TrueSave officials instructed the company's packers to use more packing material than before, and the packers zealously acted on these instructions and used as much as they could. Nevertheless, customer reports of damaged items rose somewhat.

Which of the following, if true, most helps to explain why acting on the consultants' recommendation failed to achieve its goal?


OG2016-CR-9 | OG2017-CR-553 | OG2015-CR-10 | OG12-CR-7 | OG13-CR-10 有讲解

Traverton's city council wants to minimize the city's average yearly expenditures on its traffic signal lights and so is considering replacing the incandescent bulbs currently in use with arrays of light-emitting diodes (LEDs) as the incandescent bulbs burn out. Compared to incandescent bulbs, LED arrays consume significantly less energy and cost no more to purchase. Moreover, the costs associated with the conversion of existing fixtures so as to accept LED arrays would be minimal.

Which of the following would it be most useful to know in determining whether switching to LED arrays would be likely to help minimize Traverton's yearly maintenance costs?


OG2016-CR-8 | OG2017-CR-552 | OG2018-CR-555 | OG2019-CR-558 有讲解

A newly discovered painting seems to be the work of one of two seventeenth century artists, either the northern German Johannes Drechen or the Frenchman Louis Birelle, who sometimes painted in the same style as Drechen. Analysis of the carved picture frame, which has been identified as the painting's original seventeenth-century frame, showed that it is made of wood found widely in northern Germany at the time, but rare in the part of France where Birelle lived. This shows that the painting is most likely the work of Drechen.

Which of the following is an assumption that the argument requires?


OG2016-CR-7 | OG2017-CR-551 | OG2015-CR-3 | OG13-CR-3 | OG2018-CR-553 | OG2019-CR-555 | OG2020-CR-637 | OG2022-CR-678 有讲解

Suncorp, a new corporation with limited funds, has been clearing large sections of the tropical Amazon forest for cattle ranching. This practice continues even though greater profits can be made from rubber tapping, which does not destroy the forest, than from cattle ranching, which does destroy the forest.

Which of the following, if true, most helps to explain why Suncorp has been pursuing the less profitable of the two economic activities mentioned above?


OG2016-CR-6 | OG2015-CR-2 | OG12-CR-3 | OG13-CR-2

Homeowners aged 40 to 50 are more likely to purchase ice cream and are more likely to purchase it in larger amounts than are members of any other demographic group. The popular belief that teenagers eat more ice cream than adults must, therefore, be false.

The argument is flawed primarily because the author


OG2016-CR-5 | OG2017-CR-550 | OG2015-CR-1 | OG13-CR-1 | OG2018-CR-552 | OG2019-CR-552 | OG2020-CR-634 | BiChu21-CR-707 | OG2022-CR-675 有讲解

Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?


OG2016-CR-4 | OG2017-CR-548 | OG2018-CR-549 | OG2019-CR-549 | OG2020-CR-630 | BiChu21-CR-406 有讲解

Editorial: The roof of Northtown's municipal equipment-storage building collapsed under the weight of last week's heavy snowfall. The building was constructed recently and met local building-safety codes in every particular, except that the nails used for attaching roof supports to the building's columns were of a smaller size than the codes specify for this purpose. Clearly, this collapse exemplifies how even a single, apparently insignificant departure from safety standards can have severe consequences.

Which of the following, if true, most seriously weakens the editorial's argument?


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