1 billion years after the birth of the Earth, there have been signs of life in the oceans. After billions of years, life has gradually spread to the Mainland. 翻译结果4复制译文编辑译文朗读译文返回顶部 After the birth of the earth 1 billion years, life in the sea of signs. In the follo...
Scientists believe that 4.5 billion years ago, Mars and Earth began their existence undersimilar conditions. During the first billion years,liquid water—in contrast to ice-was abundant onthe surface of Mars. This is an indication that Mars was much warmer during that time. Mars alsohad a thic...
根据最后一段中“Depending on the species, it can take anywhere from one generation to thousands and thousands of years to properly adapt, so the changes that have occurred in just the last 40 years are very troubling for scientists.(根据物种的不同,它可能需要一代人到几千年的时间来适当适应,...
Since it formed over 4.5 billion years ago, Earth has been hit more people to die of 66.n(starve).61.(occasional) by asteroids (小行星) and comets 62.The new awareness of asteroid impacts has increased the appreciation of orbits bring them into the inner solar system. These objects, ...
EversinceEarthformedroughly4.5billionyearsago,itsclimatehasgonethroughanumberofincrediblechanges.AllyouhavetodoislookatimagesoftheJurassicPeriod(侏罗纪时期)toknowthatatonetime,muchofourplanetwascoveredinextremelyhotandhumidjungle.Skipaheadacouplemillionyearsandyougettoaniceageevent,whenglobaltemperatureexperiencedahuge...
解析:题干大意:科学家估计,地壳在30亿年前就开始变化。文章第三段第二句提到:They’ve found new evidence suggesting that Earth’s crust started shifting atleast 3.8 billion years ago.他们发现新证据——地壳至少在38亿年前就开始变化。题干所述把文章信息的年份缩短了,故答案选B。反馈 收藏 ...
百度试题 结果1 题目1. Billions (billion) of years ago, there were many kinds of animals on the earth. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
But the 14_ thing about it is , "that, unlike coal and gas, it doesnt run out. Solar Impulse could pretty much keep flying forever. ", "Well, actually, the sun will run out too, one day, but not for another 5 billion_ 15.Thats a ", pretty long flight. , ( )1. A.Earth B...
Katrina艰苦仍然学习,虽然她不是feelin井。 如果她不是feelin井, Katrina艰苦仍然学习。[translate] a对...造成损失 To…Causes the losses[translate] athe earth was formed about 4.5billion years ago 地球被形成了关于4.5billion几年前[translate]
阅读理解 Ever since Earth formed roughly 4.5 billion years ago, its climate has gone through a number of incredible changes.All you have to do is look at images of the Jurassic Period(侏罗纪时期) to know that at one time, much of our planet was covered in extremely hot and humid jungle...