og-235

snowjing

惭愧,居然没看出这里的隐含前提: the older an individual carnivore is, the more likely it is to have a large number of tooth fractures.

snowjing

跟个贴:

235. The passage suggests that if the researchers had not found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

(A) the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits

(B) the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits

(C) Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcass

(D) all Pleistocene carnivores species differed behaviorally from present-day carnivore species（A）

(E) predator densities during the Pleistocene era were extremely high

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请问: A中的damage是否指文章中的abrasion within the pits?

[此贴子已经被作者于2005-8-30 23:03:23编辑过]