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
84
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
A
解析
转载请注明原文地址:https://kaotiyun.com/show/t5Qd777K
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
Parkinson’sDisease1.Parkinson’sdiseaseaffectsthewayyoumove.Ithappenswhenthereisaproblemwithcertainnervec
Lookingtohelptheenvironment?Considerthefollowingsimpleideas.Turnoffelectricaldeviceswhenthey’renotbeinguse
LookforFriendshipinCyberspaceInsomanyways,cyberspacemirrorstherealworld.Peopleaskforinformation,playgames
SleepSleepispartofaperson’sdailyactivitycycle.Thereareseveraldifferentstagesofsleep,andtheytoooccurinc
ImportanceofChildren’sOralHealthFebruaryisNationalChildren’sDental(牙齿的)HealthMonth,butinchildrengoodoralcar
1.Ahospitalisaninstitutionthatprovidesmedicalservicesforacommunity.Thedoctors,nurses,andotherpersonnelofaho
HowTwoGreatConflictsHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedt
Sleepproblemscanseriouslyaffectone’squalityoflife.ThenumberofolderAmericanswithsleepproblemsisnotsmall.
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
PleaseFastenYourSeatbeltsSevereturbulence(湍流)cankillaircraftpassengers.Now,intestflightsovertheRockyMountain
随机试题
根据《建筑施工场界噪声限值》,在城市建城区内禁止夜间施工的设备是()。
凭证式债券的形式是债权人认购债券的一种()。
下列关于票据的伪造及责任承担的表述中,符合票据法律制度规定的是()。
2017年5月17日,国务院总理李克强主持召开国务院常务会议,确定进一步减少涉企经营服务性收费和降低物流用能成本,取消甘肃、青海、内蒙古、()四省(区)政府还贷二级公路收费。
甲家的承包地被乙家的承包地所包围,在承包时,有一条小路通往甲家的承包地,甲为了拓宽道路,与乙签订了一份协议,拓宽道路一米,甲一次性支付乙5000元。甲通过该合同所取得的权利为何种权利?()
给下列词选择正确的注音。①啁啾②醍醐③孑孓
自1940年以来,全世界的离婚率不断上升。因此,目前世界上的单亲儿童,即只与生身父母中的某一位一起生活的儿童,在整个儿童中所占的比例,一定高于1940年。以下哪项关于世界范围内相关情况的断定如果为真,最能对上述推断提出质疑?
Supposethatthepriceofatelevisionsetis$100intheU.S.and8000yeninJapan.Ifthecurrentexchangerateis100yent
Onlybypractisingafewhourseveryday______beabletomasterthelanguage.
Movingfarmorequicklythanmanyhadthoughtlikelyorpossible,lawmakersinthe10-memberHouse-Senatecommitteeannouncedth
最新回复
(
0
)