Scientists wanted to find out how the process of aging could be slowed down.
The theory of natural selection provides an explanation of the evolutionary process.
人气：394 ℃ 时间：2020-05-19 23:32:31
解答
科学家们想要找出使衰老变缓的方法.
他们有关自然选择的理论提供了进化过程的解释.
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