The male lion’s mane consists of hair of varying length and color, covering, to varying degrees, the head, neck, shoulders, and

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问题     The male lion’s mane consists of hair of varying length and color, covering, to varying degrees, the head, neck, shoulders, and chest. Schaller suggested that the mane protects the area of the body “towards which most social contact is directed” by absorbing blows and bites. Darker mane hairs are thicker than lighter hairs, so darker manes may provide better protection. These ideas suggest that males with longer and darker manes will be wounded less frequently and/or with less severity on the area covered by the mane, but direct tests of this prediction are difficult. Individual males are seldom seen daily, and the mane itself obscures many wounds beneath it from view. Furthermore, even in the best studied population, serious fights between lions are rarely observed.
The passage mentions which of the following as an obstacle to verify the “prediction” mentioned in the passage?

选项 A、wounds to the mane area are often difficult to observe
B、only a few lion populations have been well studied
C、the severity of fights between lions is difficult to determine
D、individual males seldom have strong distinguishing characteristics
E、researchers have relatively few opportunities to observe lion populations directly

答案A

解析 本题定位到第五六句。the mane itself obscures many wounds beneath it from view,A正确。B项原文指出白天很难见到独处的雄狮子,与观察整个狮子群的多少无关。C项根据第六句,只是狮子之间的打斗很少被观察到,但是不能说打斗的激烈程度难以确定。D项原文只是说个体狮子在白天很少被见到。E项研究者直接观察狮子打斗行为的机会很少,而非观察狮子群的机会少。
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本试题收录于: GRE VERBAL题库GRE分类
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