A. 10 billion years B. 13.8 billion years C. 15 billion years D. 20 billion years 相关知识点: 试题来源: 解析 B。本题考查对宇宙年龄的了解。The universe(宇宙)大约有 13.8 billion years(138 亿年)。选项 A、C、D 的数字都不准确。反馈...
答：宇宙根据大爆炸宇宙模型推算，宇宙年龄大约200亿年。According to the Big Bang cosmological model, the age of the universe is about 20 billion years old.
最佳答案 【解析】答案:came into being ; beyond belief.come into being形成,根据时间状语20 billion years ago要用一般过去时;beyond belief难以置信,是固定搭配。故填:came into being;beyond belief.相关推荐 1The universe (形成)20 billion years ago, which is (难以置信). 2The universe___(形成)20...
The universe is estimated between 10 billion and 20 billion years old. A. being B.
分析:estimate的用法比较单一;1.be estimated to be/have/cost etcThe tree is estimated to be at least 700 years old.2.estimate something at somethingOrganizers estimated the crowd at 50,000.3.estimate thatScientists estimate that smoking reduces life expectancy by around 12 years on average.4.estim...
百度试题 结果1 题目How old is the universe?A.nearly 14 million years oldB.nearly 14 billion years old 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 题目The universe is estimated ___between 10 billion and 20 billion years old.相关知识点: 试题来源: 解析 to be 反馈 收藏
For years, astronomers struggled to calculate the age of the universe. Estimates ranged from 10 to 20 billion years old, a frustratingly large spread. But that was before the launch of the Hubble Space Telescope, named after the astronomer whose discovery 70 years ago began the quest to learn...
句意:这个宇宙很大,在银河系里有数以亿计的星球。 考查大数的表达。two billion二十亿;hundreds of数百;one million一百万;billions of数亿。根据”Milky Way”结合科学知识可知,银河系是非常大的,可以容纳的星球数不清,达到数亿。故选D。反馈 收藏
The Big Bang theory suggests that the Universe is approximately 14 billion years old.(a)Describe the evolution of the Universe from the Big Bang until the present day. 相关知识点: 试题来源: 解析 Universe began as hot / dense point;Universe has expanded since the Big Bang;Universe has cooled...