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题目选项分析

Between 1980 and 2000 the sea otter population of the Aleutian Islands declined precipitously. There were no signs of disease or malnutrition, so there was probably an increase in the number of otters being eaten by predators. Orcas will eat otters when seals, their normal prey, are unavailable, and the Aleutian Islands seal population declined dramatically in the 1980s. Therefore, orcas were most likely the immediate cause of the otter population decline.

Which of the following, if true, most strengthens the argument?

【选项】The population of sea urchins, the main food of sea otters, has increased since the sea otter population declined.

选项是否正确?

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:OG16-106
  • 题目来源2:OG17-647
  • 题目来源3:OG18-648
  • 题目来源4:OG19-648
  • 题目来源5:OG20-739
正确率:63%