题库> 逻辑 CR> CR-105t4h

题目选项分析

When there is less rainfall than normal, the water level of Australian rivers falls and the rivers flow more slowly. Because algae whose habitat is river water grow best in slow-moving water, the amount of algae per unit of water generally increases when there has been little rain. By contrast, however, following a period of extreme drought, algae levels are low even in very slow-moving river water.

Which of the following, if true, does most to explain the contrast described above?

【选项】Except during periods of extreme drought, algae levels tend to be higher in rivers in which the flow has been controlled by damming than in rivers that flow freely.

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:OG12-62
  • 题目来源2:OG15-61
  • 题目来源3:OG16-78
  • 题目来源4:OG17-622
  • 题目来源5:OG18-621
  • 题目来源6:OG19-621
  • 题目来源7:OG20-712
正确率:62%