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
Should the U.S. halt human space flight? The Columbia accident has revived the debate on whether the rewards of h
Should the U.S. halt human space flight? The Columbia accident has revived the debate on whether the rewards of h
admin
2009-06-15
30
问题
Should the U.S. halt human space flight?
The Columbia accident has revived the debate on whether the rewards of human space exploration are worth the risks.
No. I was a teacher when men first landed on the moon in 1969, and I remember how it moved my students and this country. (46) And we haven’t ventured outward since then. That’s 30 years too long! America’s human space-flight program is adrift, with no clear vision or goals beyond the completion of the International Space Station.
I want NASA to establish a phased series of goals over the next 20 years, including human visits to asteroids that cross the Earth’s orbit, establishing a research and living facility for humans on the moon, and human expeditions to the surface of Mars and its moons. (47) .
An astronaut is today’s Christopher Columbus, who sailed into the unknown and discovered the Americas. The knowledge we gain from having actual people exploring can never be replaced by robots. (48) Robots are useful, but humans can do things that robots can’t.
The real obstacle we face in overcoming the drift in the nation’s human space-flight program is not technological and it’s not financial. (49) .
The lesson from the Columbia accident is not that humans don’t belong in space. (50) .
A Instead, we should honor the memory of the lost astronauts by pushing our exploration of space future.
B Astronauts are key to this expanded exploration.
C It’s the lack of commitment to get started.
D Until then, we should stop risking people’s lives by sending them into space.
E It is now more than 30 years since the last American left the surface of the moon and returned to Earth.
F Our ability to send humans into space and have them return gives us amazing information about ourselves and our universe.
选项
答案
C
解析
转载请注明原文地址:https://jikaoti.com/ti/dc6sFFFM
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
Ihadbeenworkinginthetraumaunitatalocalhospitalforaboutayear.Yougetusedtofamiliesthinkingthata"coma"pati
ThefactthatChinesecharactersareassociatedwithideas,notsound,wouldmakeitafinewritteninternationallanguage.
Parkinson’sDisease1.Parkinson’sdiseaseaffectsthewayyoumove.Ithappenswhenthereisaproblemwithcertainnervec
FoodSafetyandFoodborneIllnessesFoodsafetyisanincreasinglyimportantpublichealthissue.Governmentsalloverthew
VoyagetoAntarcticaAntarcticaisnotaneasyplacetogetto,butincreasingnumbersofpeoplevisitAntarcticaeveryyear
Thegovernmentisdebatingtheeducationlaws.
Sleepproblemscanseriouslyaffectone’squalityoflife.YoungerpeopleinAmericaseldomcomplainofsleepdisorders.
Hetalkstoughbuthasatenderheart.
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
CanAddedCalciumHelpOlderBones?NewZealandresearcherssayguidelinesadvisingseniorstoconsumeatleast1,000to1,2
随机试题
计算仓库面积的方法有()。
反射弧中任何环节出现障碍,对机体生理功能不能进行调节的方式是
A、前噬菌体B、溶原性噬菌体C、毒性噬菌体D、溶原性细菌E、溶原状态整合在细菌染色体上的噬菌体称
AB血型人的红细胞膜上和血清中分别()。
公开市场一级交易商制度是指中国人民银行根据规定遴选符合条件的债券二级市场参与者作为()的对手方,与之进行债券交易。
外汇,是指以外国货币表示的、用于国际结算的多种支付凭证。它包括外国货币(钞票、铸币)、外币有价证券(政府公债、公司债券、股票等),外币支付凭证(票据、银行存款凭证、邮政储蓄凭证等)以及其他可以在国外兑现的凭证。下列不属于外汇的是()。
中国有句谚语,“富不过三代”,德国也有谚语来形容三代人,“创造,继承,毁灭”。对此,你怎么看?
甲:王实甫之词如花间美人。铺叙委婉,深得骚人之趣。极有佳句,若玉环之出浴华清,绿珠之采莲洛浦。(朱权《太和正音谱》)乙:《西厢记》的崔张故事乃千古佳传,人物也很美,无论是张生______情之美,莺莺______情之美,红娘______情之美,皆__
在以死亡为给付保险金条件的人身保险中,被保险人死亡后,如受益人已先于被保险人死亡,又没有其他受益的人,保险人不应向谁履行给付保险金的义务()。
Withwhichofthefollowingtopicsisthepassageprimarilyconcerned?WhydoestheauthormentionColonelClark’sexpedition?
最新回复
(
0
)