問題詳情

第32〜36題為題組(5%) According to Charles Darwin^ “On the Origin of Species' each subsequent generation of a species could eliminate traits and features that were no longer necessary for their survival. This contention has been applied to humans in the process of evolution, too. For millennia, humans — 32 unnecessary characteristics. For example, our bodies 33 naturally reply to threats by making oiir hair stand up on end. However, today we just have goose bumps in 34 to threats, because we，ve lost most of our hair in the evolutionary process. The appendix is another exampleof our evolution. We depended on such organ for digesting grass, but now we don’t need it for this function anymore. Still another example is humans5 auricular muscles, with which ancestors could move their ears around 35 listening for predators. Nowadays, these vestigial features can only provide us with a window into the past 36 bring us much benefit.
32.
(A) have been phased out
(B) have been phasing out
(C) have to phase out
(D) have to be phased out

參考答案

答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)

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