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...
NASA ASTRONOMERS SAY UNIVERSE IS A YOUTHFUL 12 BILLION YEARS OLD, BUT OTHER SCIENTISTS DISAGREEPAUL RECER
A. being B. to be C. which is D. is. 相关知识点: 试题来源: 解析(A) He doesn't know what's wrong with the computer, (B)The woman misunderstood what he said. (C)The problem is different from what he thought it was (D)The computer cannot be repaired反馈...
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
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...
A section of the virtual universe, a billion light years across, showing how dark matter is distributed in space, with dark matter halos the yellow clumps, interconnected by dark filaments. Cosmic void, shown as the white areas, are the lowest density regions in the Universe. Credit: Joachim...
What time is the NASA Parker Solar Probe's closest sun flyby ever on Christmas Eve? ByTariq Malikpublishedyesterday Set your Parker Solar Probe sun flyby clocks for Dec. 24 at 6:53 a.m. EST (1153 GMT), Space Fans. The Sun
5.TheEarthis about4.5 billion years old– but that’s onlya thirdof the age of the universe – which is13.5 billion years old! 6.The Earth is tiny in comparison with the rest of the universe – it could fit into the Sun1.3 million times. How small does that make you feel?! Check...
By doing this, researchers hope to learn more about galaxies formed in the universe’s first billion years. “We expected to find very distant galaxies close to the cluster core, where the light amplification is maximum. However, this galaxy is very close to the edge of the Hubble image ...