美国政治:参议院预算投票
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科学60秒:身体温暖保健康
As a bitter winter storm rages on the east coast, it’s hard to knock being warm-blooded. But what about the metabolic cost of maintaining a high body temperature? Well, a new study finds that we...
生命的拼搏
短文Life Struggle Once upon a time in a land far far away, there was a wonderful old man who loved everything. Animals, spiders, insects... One day while walking through the woods the nice ol...
晨读美文002
晨读的美文A person, like a commodity, needs packaging. But going too far is absolutely undesirable. A little exaggeration, however, does no harm when it shows the person's unique qualities to the...
类地行星发现者
这是一篇关于类地行星发现的介绍。For a planet to support life, the planet must be located within its star’s habitable zone. That is, it must be located at a distance where the temperature would a