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一道GWD逻辑题,纠结很久求搭救

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 migratory 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.

C.Since rice is not raised in midland province, few species of birds native to the province normally eat rice.

AC我觉得都对啊= =~~求逻辑思维解释!!
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感谢各位啊~

TOP

我一开始也选错了,后来仔细研究了题干,发觉纠结C是因为理解错了题干。
提干后半句“certain species of rare migratory birds”指的是“其他迁徙的珍稀鸟类”,而不是我最初理解的“其他不怎么迁徙的鸟类”,然后就自然理解为C选项的“本地鸟类”
思维也就错误的认为“本地鸟类不吃rice,可以避免误杀”
之后便明白A"第一批到来的鸟,可以先吃有毒的rice,之后即便没有吃完,也有时间在其他鸟来之前把毒米收走"

TOP

选A吧,因为文章中说可能威胁到的是certain species of rare migratory birds,C项里面说的是native species.

TOP

这个不是选A吧。。

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