返回列表 发帖

gwd 6-30

Q30:

Each year red-winged blackbirds stop in a certain region of Midland Province on their spring and fall migrations.  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 concerns voiced by some residents?

  1. In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.
  2. The poison that farmers want to use does not kill birds but rather makes them incapable of producing viable eggs.
  3. Since rice is not raised in Midland Province, few species of birds native to the province normally eat rice.
  4. Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined.
  5. The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.

ans is a,why c is incorrect?

收藏 分享

文章说对“稀有的迁徙鸟有威胁”

C说本土的鸟都不吃。C就没有什么意义了

TOP

哦哦哦,谢谢~~是我疏忽了

TOP

返回列表

站长推荐 关闭


美国top10 MBA VIP申请服务

自2003年开始提供 MBA 申请服务以来,保持着90% 以上的成功率,其中Top10 MBA服务成功率更是高达95%


查看