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
What is special about this class?
What is special about this class?
admin
2013-04-27
50
问题
What is special about this class?
Good morning everyone. My name is Professor Michael Andrews. On behalf of myself and my colleagues, I would like to welcome you to Extrasolar Planetology, which is a new class being offered by the Astronomy Department this year.
About twenty-five years ago, there was no solid proof that other planets existed beyond our solar system. Most astronomers at that time felt that planets had to be out there, but they could not see them or prove they were there. Why? Simply put, planets are small and space is vast. Imagine trying to see a pea with a telescope from a hundred miles away, and you’ll understand how hard it is to find planets that are light years distant.
Clearly, something changed, for we now have a class called Extrasolar Planetology. What changed? Well, mainly, instruments got better and sophisticated telescopes were put into space. As a result, astronomers began to find the proof that they had lacked before.
The very first good evidence for the existence of other planets came from observations of ’wobbling’ stars. Using their high-tech instruments and space-based telescopes, astronomers found that some stars wobbled as they moved through space. What could be causing this the astronomers wondered? And then Eureka! The only likely explanation seemed to be that these stars were being affected by the gravity of unseen orbiting companions. In other words-planets!
And now, if you would please turn off the lights, I would like to show you some slides of a few of these wobbling stars.
选项
A、It is brand new.
B、Half the faculty is there.
C、Some stars are watching.
D、It is being held in Eureka.
答案
A
解析
细节题。讲座开头有“which is a new class”,可知是一门新课。选项C很荒谬。
转载请注明原文地址:https://kaotiyun.com/show/whQK777K
0
专业英语四级
相关试题推荐
Theterm"qualityoflife"isdifficulttodefine.It【C1】______averywidescopesuchaslivingenvironment,health,employment,
Theaudiencewaitedin______silencewhiletheiragedspeakersearchedamonghisnoteforthefigureshecouldnotremember.
Itisinconsumers’intereststhatThreeemergesfromthisyear’s4Gauctiononamoreequalfootingwithitsrivals.Austri
ManycountrieswillnotallowcigaretteadvertisingintheirnewspaperoronTV—especially【C1】______theadvertisementsareusu
Thisdisease______itselfinyellownessoftheSkinandeyes.
Itisoftenclaimedthatnuclearenergyissomethingwecannotdowithout.Weliveinaconsumersociety,wherethereisanenor
Withoutfacts,wecannotformacorrectopinionforweneedtohavefactualknowledge______ourthinking.
TravelersarrivingatHeathrowairportthisyearhavebeenmetbythesmelloffreshly-cutgrass,pumpedfromadiscreetcorner
Beforereturningtohisoffice,Joehasto
Withoutyourhelp,tofinishtheworkontimeis______.
随机试题
在行政权力的行使和运用过程中,最基本的、也是首要的环节是【】
诗经《氓》的表现手法是以赋为主,间用比兴。()
下列关于竣工验收的说法正确的有()。
背景材料: 某施工单位承接了一4×20m简支梁桥工程。桥梁采用扩大基础,墩身平均高10m。项目为单价合同,且全部钢筋由业主提供,其余材料由施工单位自采或自购。 在离本工程不远的江边有丰富的砂源,经检验,砂的质量符合要求。采砂点位于一跨江大桥下游
(2017年)甲公司系增值税一般纳税人。2×16年12月31日,甲公司出售一台原价为452万元、已计提折旧364万元的生产设备,开具的增值税专用发票上注明的价款为150万元,增值税税额为24万元,出售该生产设备时发生不含增值税的清理费用8万元。不考虑其他因
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性()。
党的十六大提出,要建立健全社会保障体系,千方百计扩大就业和再就业,不断改善人民生活。这说明()。
-3,-l,0,2,10,()
拉文格认为,成人最难达到的自我发展的水平是()
Readthefollowingpassageandanswerquestions9-18.1.Whenoneofyourcartiresgoesflat,therearetwothingsyoucando.
最新回复
(
0
)