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标题: 求助一道GWD逻辑题GWD17-Q11 [打印本页]

作者: handsomeyu1125 时间: 2014-9-26 14:31
标题: 求助一道GWD逻辑题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?

A. Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.

B. It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.

C. The number of snow geese taken by hunters each year has grown every year for several years.

D. As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

E. In the snow goose’s winter habitats, the goose faces no significant natural predation.

用排除法选除了B。但是不理解其中的逻辑

作者: leonald008 时间: 2014-9-26 17:28
限令是每年杀了5%之后，捕杀季节就结束。
B说每年捕杀季实际上都比官方预计的要早结束，说明猎人在这段时间里补得很凶。要是放松限令，后果会很严重。

作者: handsomeyu1125 时间: 2014-9-28 16:33
LS的解释岂不是加强而非削弱啊？

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