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标题: T-3-Q24，GWD11套里面的，旧题新问~ [打印本页]

作者: 笨蛋加油 时间: 2012-3-6 11:15
标题: T-3-Q24，GWD11套里面的，旧题新问~
T-3-Q24.
Each year red-winged blackbirds stop in a certain region of Midland Province on their spring and fall migration. In the fall, they eat a significant portion of the province’s sunflower crop. This year Midland farmers sought permits to set out small amounts of poisoned rice during the blackbirds’ spring stop in order to reduce the fall blackbird population. Some residents voiced concern that the rice could threaten certain species of rare birds. Nevertheless, the wildlife agency approved the permits.
Which of the following, if true, most helps to justify the wildlife agency’s approval of the permits, given the concern voiced by some residents?
A.   In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.
B.   The poison that farmers want to use does not kill birds but rather make them incapable of producing viable eggs.
C.   Since rice is not raised in midland province, few species of birds native to the province normally eat rice.
D.   Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined
E.   The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.

答案A，看了以前的讨论，我承认我选C是把类别分错了。大部分童鞋对A的质疑是因为觉得先到的鸟不一定把有毒的rice吃完，那我的问题是farmers是想减少秋天的鸟的数量哈，但是A说的是春天啊。。。好吧就算春天数量少了，那后来又繁殖多了，到了秋天还是不会减少啊。。。难道这题还考鸟什么时候繁殖？厄。。。求解释。。。

作者: 笨蛋加油 时间: 2012-3-6 11:29

作者: 子弹青春 时间: 2012-3-6 11:38
If some birds are killed in spring, the total numbers of the birds will be definately less even if they can propagate during the summer. Because there is no reason for us to believe that the speed of their propagating will be quicker.

That's the purpose of this option, don't think too much since you get nothing from the argument to let you do more.

作者: 笨蛋加油 时间: 2012-3-6 18:30

If some birds are killed in spring, the total numbers of the birds will be definately less even if they can propagate during the summer. Because there is no reason for us to believe that the speed of their propagating will be quicker.

That's the purpose of this option, don't think too much since you get nothing from the argument to let you do more.

-- by 会员子弹青春 (2012/3/6 11:38:24)

嗯，解释的很到位，感激O(∩_∩)O~

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