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标题: [求助]GWD17-Q11谢谢~~~ [打印本页]

作者: qqc_17 时间: 2009-8-26 17:29
标题: [求助]GWD17-Q11谢谢~~~

GWD17-Q11:

Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

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

Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
The number of snow geese taken by hunters each year has grown every year for several years.
As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
In the snow goose’s winter habitats, the goose faces no significant natural predation.

答案：B 不明白题目最后一句话，不是应该提高这个restriction才能保护其他么，为什么是dropping……理解上是哪出错了呢……B也不明白呢~~~还请大家指教

作者: qqc_17 时间: 2009-8-26 17:40
都没有人答啊……急……

作者: 孤独狂欢 时间: 2009-8-27 00:40

帮你说下原文吧，只有dropping限制才会让人更多的去猎杀G啊，让其他动物recovery

答案等待NN吧

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