32. GWD30-Q32: B A major chemical spill occurred five years ago at Baker’s Beach, the world's sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s Beach has actually increased somewhat since five years ago. Clearly, environmentalists’prediction that the world's Merrick population would decline as a result of the spill has proven unfounded. Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists’ prediction? B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs when they are ten years old. 我自己定义的因果关系为 因:母龟跑回来下蛋的只数增加 果:化学污染问题的影响没有出现 其他的答案我都排除掉了 但不知道为什麽因果关系跟乌龟的年龄有关...... 请问大家 感谢~! --

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