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1. Biologist: if reports of people's observations along the newly constructed highway are to be believed, many large herbivores such as deer and moose are grazing there. The reported numbers are about equal to our overall population estimates of the past three years, and if there are that many near the road, the animals must be even more abundant in more distant reaches of the forest. So concerns that local populations of these animals are threatened by the construction of the new highway are clearly misplaced. Which of the following, if true, would most seriously undermine the biologist’s reasoning? A Animals that prey on large herbivores tend not to venture anywhere near roads and cars. B Road construction in an area reduces the availability of plants in that area to large herbivores. C The distant reaches of the forest cover much more area than does the part of the forest visible from the new highway. D Vacationers accustomed to encountering large herbivores make up most of the traffic on the new highway. E The new highway was built over approximately three years.
2.Paleontologists in 1947 found a large group of fossilized skeletons of the carnivorous dinosaur Coelophysis. In the space where one Coelophysis's stomach had been, there were bones from another individual of the same species. The paleontologists concluded from this that Coelophysis was cannibalistic. In order to evaluate the strength of the paleontologists’s argument, it would be most helpful to know which of the following? A. How many other dinosaur species were also found mixed among the Coelophysis B. To what extent bones from different individual Coelophysis dinosaurs were randomly jumbled together in the group of fossilized skeletons C. What bones of other dinosaur species were also found mixed among the Coelophysis bones D. How many other dinosaur species Coelophysis is known to have eaten E. Whether the bones that were found in the space that had been one Coelophysis's stomach came from more than one part of the other Coelophysis's body
参考答案： AB
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发表于 2021-6-10 06:05:28
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