首页
登录
职称英语
At present, it seems impossible to visit the satellites of other stars in se
At present, it seems impossible to visit the satellites of other stars in se
游客
2024-08-04
27
管理
问题
At present, it seems impossible to visit the satellites of other stars in search of life. Our present theories of physics indicate that it is impossible to move at a speed greater than that of light. Even at such a speed it would take many years to reach the nearest star that might have planets. Most of such stars are many lifetimes away.
Perhaps someday we shall invent ways of traveling or sending messages that will allow man to find other living things in the universe.
Even more interesting is the possibility that they may find us.
If the steady-state theory of the universe is correct, there must be many "solar systems" that are much older than ours.
On some of these, intelligent life may have evolved long ago. If so, these creatures might be exploring the universe today.
Serious scientific projects in recent years have been studying the risks with radio telescopes, hoping to find signals sent by such intelligent beings. It has been suggested that the puzzling quasars(类星体) might be the wakes(航迹) left by spaceships traveling faster than light.
Thus far, we have found no definite evidence of other intelligent life in the universe. Perhaps we never shall. Yet the search and the hope will remain an exciting possibility for the future. [br] Which of the following isTrue according to the passage?
选项
A、Attempts have been made to find life on other planets.
B、It seems unlikely that life exists on other planets.
C、Intelligent beings from other planets have visited the earth.
D、Spaceships have been launched by other intelligent beings.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3705631.html
相关试题推荐
IfpresentedwiththewordsMAR.AMandFARandaskedtofindtheshortestword
______andWilliamShakespearearethebestrepresentativesofEnglishHumanism.
ElizabethWarren,aDemocrat,representsMassachusettsintheU.S.Senate.[img
ElizabethWarren,aDemocrat,representsMassachusettsintheU.S.Senate.[img
—Ithinkwe’reallherenow.Sara,you’redoingapresentationonamedicaltopic
—Ithinkwe’reallherenow.Sara,you’redoingapresentationonamedicaltopic
Withprices______somuch,itisimpossibleforthecompanymanagertostickto
Thosetwinsaresoalikethatitisnexttoimpossibletodistinguish______.A、w
TheheadquartersofBiopaintsarebasedin______.[br][originaltext]Presenter
TheheadquartersofBiopaintsarebasedin______.[br][originaltext]Presenter
随机试题
•Readthearticlebelowaboutbuying-acomputer.•Choosethebestwordtofill
[originaltext]W:Oh,I’mfedupwithmyjob.M:Hey,thereisaperfectjobfor
Areyouthinkingabouttryingoutapoliticalcareerbutyour【C1】______are
Honduranauthorities【D1】______totheprotectionofchildrenandadolescents
马克思主义认为,垄断资本主义发展的历史趋势是()A.生产资料公有制代替
主产于河南的药材是A.防风B.绵马贯众C.三七D.山药E.当归
()通常是指用人单位与劳动者之间在运用劳动者的劳动能力、实现劳动过程中所发生的
A.内分泌失调 B.舔唇不良习惯 C.机体抵抗力下降 D.残根残冠刺激
关于现金管理中现金使用的限额,下列表述正确的有()。A、开户银行应当根据实际需要
(2018年真题)某企业新一届领导班子运用现代企业管理理念,在制定总体目标和进行
最新回复
(
0
)