A-A+

回答(50)题 查看材料A.But this advantage also has a bi

2022-08-01 21:34:02 问答库 阅读 167 次

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回答(50)题 查看材料
A.But this advantage also has a big drawback——up to 10% of the biggest toads suffer from arthritis.
B.The task now facing the country is how to remove the toads.
C.But arthritis didn"t slow down toads outside the laboratory.
D.Toads with longer legs move faster and travel longer distances while the others are being left behind.
E.Toads are not built to be road runners——they are built to sit around ponds and wet areas.
F.Furthermore, they soon take over the natural habitats of Australia"s native species.请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:C
从原文来看,空白处前面一句讲到研究者发现跳跃约15分钟后,有关节炎的蟾蜍每一次跳跃的距离会递减。空白处后一句提到蟾蜍是程序化的移动,即使有关节病的蟾蜍,也跟健康的蟾蜍跳得一样快,一样高远。前后有转折关系,所以C选项(但是关节疾病不会降低蟾蜍的速度)是正确答案。

考点:材料