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In a certain wildlife park, park rangers are able to track the movements of many rhinoceroses because those animals wear radio collars. When, as often happens, a collar slips off, it is put back on. Putting a collar on a rhinoceros involves immobilizing the animal by shooting it with a tranquilizer dart. Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females. Probably, therefore, some substance in the tranquilizer inhibits fertility.

In evaluating the argument, it would be most useful to determine which of the following?

【选项】Whether radio collars are the only practical means that park rangers have for tracking the movements of rhinoceroses in the park

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:PREP08 Test 1-74
难度: 难