首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Viewed from a star in some other corner of the galaxy, Earth would be a speck, a faint blue dot hidden in the blazing light of o
Viewed from a star in some other corner of the galaxy, Earth would be a speck, a faint blue dot hidden in the blazing light of o
admin
2015-01-09
55
问题
Viewed from a star in some other corner of the galaxy, Earth would be a speck, a faint blue dot hidden in the blazing light of our sun. While our neighbors Venus and Mars would reflect a fairly even glow, Earth would put on a little show. Earth’s light would brighten and dim as it spins, because oceans, deserts, forests and clouds-which are all too small to be seen from such a distance—reflect varying arnounts of sunlight. The variations, it turns out, are so strong and distinctive that surprising amount of information could be taken from a simple ebb and flow of light. Scientists at Princeton University andthe Institute for Advanced Study conducted a detailed study of Earth’s reflections as a way for human scientists to learn about distant planets that may be like our own.
"If you looked at our solar system from far away, and you looked at the terrestrial planets—Mercury, Venus, Earth and Mars—one of the quickest ways to see that Earth is unique is by looking at the light curve," said Ed Turner, professor of astrophysics and a co-author of the study. "Earth has by far the most complicated light curve." The standard thinking in the field had been that most of the information about an Earth-like planet would come from spectral analysis, a static reading of the relative component of different colors within the light, rather than a reading of changes over time. Spectral analysis would reveal the presence of gases such as water vapor, carbon dioxide and oxygen, in the planet’s atmosphere, kooking at the change in light over time does not replace spectral analysis, but it could greatly increase the amount of information scientists could learn, said Turner. It may indicate, for example, the presence of weather, oceans, ice or even plant life.
Which of the following statements is TRUE?
选项
A、Scientists at the Princeton University want to find that distant planets are like our Earth.
B、Among all the terrestrial planets Earth’s light curve is the most complicated.
C、Spectral study of the light will see no development of itself because it is static.
D、Spectral reading is used as a supplementary method to the study of the change in light over time.
答案
B
解析
本题应选B。大意是地球的光变曲线是太阳系中最复杂的,依据原话是“Earth has by far the mostcomplicated light curve.”在第一段最后一句话提到:普林斯顿大学和高级研究协会的科学家对地球的光线进行了详细研究,把这作为人类科学家了解类似于地球的遥远星球的一种方法,所以A项不正确,而选项C、D在文中并没有提到。
转载请注明原文地址:https://kaotiyun.com/show/TXLO777K
0
考博英语
相关试题推荐
Anumberofresearchershavewrittenabouta"hiddencurriculum"inschools,definedasthesubtleinfluencesonstudentsthatr
Thebattleisofgreatsignificancewhenviewedinthe______oftheprogressofthewar.
AsTexasbeginstorecoverfromtwoweeksofdevastatingstorms,agenerallyhiddentruthaboutitseconomywillcometolighta
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Nooneknowsquitehowtheywillinteractwiththechangin
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Nooneknowsquitehowtheywillinteractwiththechangin
Therearehiddenfactorswhichscientistscall"feedbackmechanisms".Nooneknowsquitehowtheywillinteractwiththechangin
Viewedfromastarinsomeothercornerofthegalaxy,Earthwouldbeaspeck,afaintbluedothiddenintheblazinglightofo
随机试题
中小型企业在国民经济中具有重要地位,下列说法错误的是()
不符合妄想特征的是
图示对比不同职业人群的冠心病患病率的高低,应绘制
阿尔茨海默病患者的首发症状是
本题考核知识点:资本成本的计算、净现值法、投资项目的敏感性分析一最大最小法某公司拟与甲公司合作生产A产品,通过调查研究提出以下方案:(1)设备投资:设备买价400万元,预计可使用4年,报废时无残值收入,按税法要求该类设备折旧年限为5年,使用直线法折旧,
学校侵犯未成年人合法权益的由教育行政部门或相关部门责令改正,情节严重的可以直接对负责主管人员或其他负责人依法处分。
Thereislittledebateaboutthefirstdevelopmentoftheenergysystemofthe22ndcenturythatmostoftheenergyproducedon
试述货币需求理论发展的内在逻辑(可缩减)。
Healthimpliesmorethanphysicalfitness.Italsoimpliesmentalandemotionalwell-being.Anangry,frustrated,emotionally【B1
Youwillhearfivedifferentpeopletalkingaboutthecompaniestheyworkfor.Foreachextract,therearetwotasks.ForTask
最新回复
(
0
)