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题目选项分析

During the month of May, crabs arrive on Delaware's beaches to lay eggs. Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds. Delaware's crab population has declined recently. This decline, however, poses no serious threat to the migrating shorebird populations: by remaining longer in Delaware, the birds will be able to eat enough crab eggs to allow them to complete their migration.

Which of the following, if true, most seriously weakens the argument?

【选项】The crabs do not conceal their eggs.

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:GWD-162
正确率:59% 中等