标题: 请教TEST12部分的10提 [打印本页] 作者: bettyofarim 时间: 2003-12-10 21:43 标题: 请教TEST12部分的10提 10. The geese that gather at the pond of a large corporation create a hazard for executives who use the corporate helicopter, whose landing site is 40 feet away from the pond. To solve the problem, the corporation plans to import a large number of herding dogs to keep the geese away from the helicopter. Which of the following, if a realistic possibility, would cast the most serious doubt on the prospects for success of the corporation’s plan? (A) The dogs will form an uncontrollable pack. (B) The dogs will require training to learn to herd the geese. (C) The dogs will frighten away foxes that prey on old and sick geese. (D) It will be necessary to keep the dogs in quarantine for 30 days after importing them. (E) Some of the geese will move to the pond of another corporation in order to avoid being herded by the dogs. 答案A。不明白这个dogs与uncontrollable pack 和to keep the geese away from the helicopter有什么直接关系吗？ 到觉得E象削弱。因为说geese will move to the pond of another corporation 则证明上面的计划是达不到效果的
13. Houses built during the last ten years have been found to contain indoor air pollution at levels that are, on average, much higher than the levels found in older houses. The reason air-pollution levels are higher in the newer houses is that many such houses are built near the sites of old waste dumps or where automobile emissions are heavy. Which of the following, if true, calls into question the explanation above? (A) Many new houses are built with air-filtration systems that remove from the house pollutants that are generated indoors. (B) The easing of standards for smokestack emissions has led to an increase in air-pollution levels in homes. (C) New houses built in secluded rural areas are relatively free of air pollutants. (D) Warm-weather conditions tend to slow down the movement of air, thus keeping pollution trapped near its source. (E) Pressboard, an inexpensive new plywood substitute now often used in the construction of houses, emits the pollutant formaldehyde into the house. 答案E。这个没有问题。但是A好象也对呢？作者: cranberry 时间: 2003-12-10 22:53
1.就是狗本身也会成为一种问题,即走了鹅来了狗