47. Which of the following most logically completes the argument below?
Davison River farmers are currently deciding between planting winter wheat this fall or spring wheat next spring. Winter wheat and spring wheat are usually about equally profi table. Because of new government restrictions on the use of Davison River water for irrigation, per acre yields for winter wheat, though not for spring wheat, would be much lower than average. Therefore, planting spring wheat will be more profi table than planting winter wheat, since ______________.
(A) the smaller-than-average size of a winter wheat harvest this year would not be compensated for by higher winter wheat prices正解。我觉得理由skyzhang版主解释的已经很清楚了，所以我就不再画蛇添足了...
(B) new crops of spring wheat must be planted earlier than the time at which standing crops of winter wheat are ready to be harvested
(C) the spring wheat that farmers in the Davison River region plant is well adapted to the soil of the region
(D) spring wheat has uses that are different from those of winter wheat
(E) planting spring wheat is more profitable than planting certain other crops, such as rye
When a new restaurant, Martin’s Cafe, opened in Riverville last year, many people predicted that business at the Wildflower Inn, Riverville’s only other restaurant, would suffer from the competition. Surprisingly, however, in the year since Martin’s Cafe opened, the average number of meals per night served at the Wildflower Inn has increased significantly.Which of the following, if true, most helps to explain the increase?
A. Unlike the Wildflower Inn, Martin’s Cafe serves considerably more meals on weekends than it does on weekdays.
B. Most of the customers of Martin’s Cafe had never dined in Riverville before this restaurant opened, and on most days Martin’s Cafe attracts more customers than it can seat.
C. The profit per meal is higher, on average, for meals served at Martin’s Cafe than for those served at the Wildflower Inn.
D. The Wildflower Inn is not open on Sundays, and therefore Riverville residents who choose to dine out on that day must either eat at Martin’s Cafe or go to neighboring towns to eat.
E. A significant proportion of the staff at Martin’s Cafe are people who formerly worked at the Wildflower Inn and were hired away by the owner of Martin’s Cafe.
Which of the following most logically completes the argument below?Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce. Because many of those large satellites have ceased to function, the proposal recently been made to eliminate interference from nonfunctioning satellites by exploding them in space. This proposal, however, is ill conceived, since ________.
A. Many nonfunctioning satellites remain in orbit for years
B. For satellites that have ceased to function, repairing them while they are in orbit would be prohibitively expensive
C. There are no known previous instances of satellites’ having been exploded on purpose
D. The only way to make telescope observations without any interference from debris in orbit is to use telescopes launched into extremely high orbits around the Earth
E. A greatly increased number of small particles in Earth’s orbit would result in a blanket of reflections that would make certain valuable telescope observations impossible
Massachusetts Institute of Technology GRE: 1353 GMAT:720 Stanford University (CA) GRE: 1354 GMAT:720 University of California–Berkeley GRE: 1353 GMAT:707 Georgia In
GMAT考试是美国管理专业招收研究生委员会主办和负责指导的考试, 其英文全称是Graduate Management Admission Test。GMAT考试的科目包括会计学、经济学、管理学、普通管理、生产管理、行政管理、