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
A、Their surface features. B、Their chemical composition. C、Their temperature. D、Their age. B信息明示题。女士说科学家们可以利用新的望远镜来分解、分析光线,进而希望了
A、Their surface features. B、Their chemical composition. C、Their temperature. D、Their age. B信息明示题。女士说科学家们可以利用新的望远镜来分解、分析光线,进而希望了
admin
2010-08-04
62
问题
M: Doctor Cole, thank you for agreeing to this interview for the Daily Campus News. Can you tell us about what you and your colleagues discuss at the annual astronomy society meeting last month?
W: Yes. For the first time ever the scientific community has established the existence of planets outside our own solar system. of course we knew that certain distant stars existed but only recently did we learn that several of them are orbited by their own planets.
M: Why did it take so long to locate these planets?
W: Well, you have to understand that they are a billion times dimmer than their parent stars. It would be like trying to see the light of a candle next to a huge explosion. We don’t currently have a telescope that can be used to see them.
M: But if the astronomers didn’t see the planets through a telescope, how did they find them?
W: Bra very indirect method. The astronomers measured subtle distortions in the frequency of the light from the parent stars and observed that some of the stars seem to rock back and forth, They determined that this was caused by gravitational pull from orbiting planets.
M: There is a powerful new telescope being built in Arizona. Will that help them see these planets?
W: They should be able to see them at least in the form of small spots of light. And then the scientists will be able to break down and analyze this light. By doing this, they hope to learn about the chemical composition of these planets--oxygen and ozone molecules, for example, would be telltale signs of life on these planets.
M: I’m looking forward to hearing more when the telescope is in operation. And I’m sure our readers would be interested too.
选项
A、Their surface features.
B、Their chemical composition.
C、Their temperature.
D、Their age.
答案
B
解析
信息明示题。女士说科学家们可以利用新的望远镜来分解、分析光线,进而希望了解这些行星的化学成分,故选B。
转载请注明原文地址:https://kaotiyun.com/show/wYA7777K
0
大学英语四级
相关试题推荐
A、Buyingahouseneedsalotofmoney.B、Buyingahouseneedsalotoftimeandenergy.C、Buyingahouseneedsalotofmoneyas
Formanywomenchoosingwhethertoworkornottoworkoutsidetheirhomeisaluxury:theymustworktosurvive.Othersfacea
Moststudentsthinkofthelibraryonly【C1】______aplacewherebooksarestored,butalibraryalso【C2】______manyvaluables
Largecompaniesneedawaytoreachthesavingsofthepublicatlarge.Thesameproblem,onasmaller【B1】______,facespractica
FromGolda:theLifeofIsrael’sPrimeMinisterTheStrugglewithHerParentsoverHerEducationWhenGoldagraduatedas
A、Becausethehotelmanagerisoneofherrelatives.B、Becauseshecouldgetfreeroomandboard.C、Becauseshecouldgetsomed
A、Peter’smotheriscomingfordinner.B、Peterwillbeunabletocome.C、Peterdoesn’tliketocome.D、Peterisvisitinghismot
A、Buyapresent.B、Buyanewdress.C、Preparesomefood.D、Gathersomemoney.B
A、It’scruel.B、It’sinteresting.C、Sheobjectstokillinganimalsforsport.D、Theyarefullofskills.D当男士说:“Theyarenotrea
Hereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.Thisis,however,a【S1】______.Noscho
随机试题
侵犯商标权的表现形式有哪些?
男性,50岁,患慢性支气管炎多年,近2年出现走路时气急,曾胸透发现肺纹理增强紊乱,两肺透光度增加,膈肌位于第11后肋。1天前在用力时突感呼吸困难加重,右胸刺痛,最可能的诊断是
以下哪一种疾病不适合使用生命质量评价
A.塑料输液瓶B.玻璃输液瓶C.输液瓶铝盖D.输液软管E.塑料输液瓶外塑封袋属于Ⅲ类药包材的是
关于横道图法具有的特性,下列叙述错误的是()。
对于实行定额备用金制度的企业,在账务处理上,()。
某百货公司销售彩电,在门口广告牌上写明:“凡在本商店购买彩电者,一律给总价百分之二的回扣,介绍推销者给付总价款百分之一的佣金”。该广告被人发现后,举报到有关部门,经调查发现该公司给付的回扣和佣金,在账面上有明确记载。该公司给付回扣和佣金的行为是()
[*]
Mirrorimagesisoftendifferentfromthe"feltimages".
A、Thecontinentsandoceanfloorsmoveviolently.B、Theearthisaspermanentasitwas.C、Thesurfaceofourplanetisalwaysi
最新回复
(
0
)