一道几经题

chasedreamtrue

50.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猎获物
        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

A为何不对呢？？？

谢谢

greyskyblue6

题目的结论是说不采用限制捕猎snow geese的措施会让其他物种的数量上升。而A只是说采用捕猎的措施的目的是什么，和不采用会对其他物种造成的影响无关。

abort

哪位nn说说什么意思？

LOUI1121

A） Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
解释限制的由来 并不能削弱结论。
B）It has been many years
since the restriction led to the hunting season for snow geese being
closed earlier than the scheduled date.
是说那个限制很久没有把打猎季节提前结束了。就是说限制并没有导致那个动物的数量上升，削弱结论，