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蓝色是我选的，红色是正确答案。能一起讨论下吗？ 谢谢！ Page 34 22. GWD27-Q22: Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago. Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water. Although fossil evidence shows that some early whale species that lacked such kidneys sometimes swam in the Earth’s saltwater oceans, these species must have had to return frequently to freshwater rivers to drink. Which of the following is most strongly supported by the information given? - Fossils of whale species dating from between sixty million and fifty million years ago will not be found on continents that were at the time separated from ancient Asia by wide expanses of ocean.
- Among whale fossils that date from later than about fifty million years ago, none are fossils of whale species that drank only fresh water.
- Fossils of whale species that drank fresh water will not be found in close proximity to fossils of whale species that drank salt water.
- The earliest whales that drank salt water differed from fresh-water-drinking whales only in their possession of specialized kidneys.
- Between sixty million and fifty million years ago, the freshwater lakes and rivers in which whales originated were gradually invaded by salt water.
Page45 People who have spent a lot of time in contact with animals often develop animal-induced allergies, a significant percentage of which are quite serious. In a survey of current employees in major zoos, about 30 percent had animal-induced allergies. However, a zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation. Which of the following hypothesis receives the strongest support from the information given? (A) The incidence of serious animal-induced allergies among current zoo employees is lower than that among the general population. (B) Zoo employees tend to develop animal-induced allergies that are more serious than those of other people who spend equally large amounts of time with animals. (C) Exposure to domestic pets is, on the whole, less likely to cause animal-induced allergy than is exposure to the kinds of animals that are kept in zoos. (D) There is no occupation for which the risk of developing an animal-induced allergy is higher than 30 percent. (E) Among members of the general population who have spent as much time with animals as zoo employees typically have, the percentage with animal-induced allergies is significantly more than 30 percent.
Which of the following most logically completes the passage? Concerned about financial well-being of its elderly citizens, the government of Runagia decided two years ago to increase by 20 percent the government-provided pension paid to all Runagians over 65. Inflation in the intervening period has been negligible, and the increase has been duly received by all eligible Runagians. Nevertheless, many of them are no better off financially than they were before the increase, in large part because ________. A. They rely entirely on the government pension for their income B. Runagian banks are so inefficient that it can take up to three weeks to cash a pension check C. They buy goods whose prices tend to rise especially fast in times of inflation D. The pension was increased when the number of elderly Runagians below the poverty level reached an all-time high E. In Runagia children typically supplement the income of elderly parents, but only by enough to provide them with a comfortable living
Page59 Manager: Accounting and Billing are located right next to each other and the two departments do similar kinds of work: yet expenditures for clerical supplies charged to Billing are much higher. Is Billing wasting supplies? Head of Billing: Not at all. Which of the following, if true, best supports the position of the Head of Billing? (A) There are more staff members in Accounting than in Billing. (B) Two years ago, expenditures in Accounting, for clerical supplies were the same as were expenditures that year in Billing for clerical supplies. (C) The work of Billing now requires a wider variety of clerical supplies than it did in the past. (D) Some of the paper-and-pencil work of both Accounting and Billing has been replaced by work done on computers. (E) Members of Accounting found the clerical supplies cabinet of Billing more convenient to go to for supplies than their own department’s cabinet.
Page76 Archaeologists have found wheeled ceramic toys made by the Toltec, twelfth-century inhabitants of what is now Veracruz. Although there is no archaeological evidence that the Toltec used the wheels for anything but toys, some anthropologists hypothesize that wheeled utility vehicles were used to carry materials needed for the monumental structures the Toltec produced. Which of the following, if true, would most help the anthropologists explain the lack of evidnce noted above? (A) The Toltec sometimes incorporated into their toys representations of utensils or other devices that served some practical purpose. (B) Any wheeled utility vehicles used by the Toltec could have been made entirely of wood, and unlike ceramic, wood decays rapidly in the humid climate of Veracruz
(C) Carvings in monument walls suggest that the Toltec’s wheeled ceramic toys sometimes had ritual uses in addition to being used by both children and adults as decorations and playthings. (D) Wheeled utility vehicles were used during the twelfth century in many areas of the world, but during this time wheeled toys were not very common in areas outside Veracruz. (E) Some of the wheeled ceramic toys were found near the remains of monumental structures.
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