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
91
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://kaotiyun.com/show/k5Qd777K
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
BreastCancerDeathsRecordLowThenumberofwomendyingfrombreastcancerhasfallentoarecordlowbydroppingunder12
Accidentsoftenarisefromcarelessness.
IsThereaWaytoKeeptheBritain’sEconomyGrowing?1Intoday’sknowledgeeconomy,nationssurviveonthethingstheydobest
Britishteenagersaredamagingtheirhealthbynotgettingenoughsleepbecausetheyaredistractedbyelectronicgadgetsinthe
A.becauseoftheirsimilarityB.thatwewouldnotbeabletounderstanditatallC.tothepopularizationofEnglishasawor
Hetalkstoughbuthasatenderheart.
DungtodeathFieldsacrossEuropearecontaminatedwithdangerouslevelsoftheantibiotics(抗生素)giventofarmanimals.T
FasterEffectiveReadingAhigherreadingrate,withnolossofcomprehension,willhelpyouinothersubjectsaswellasinEng
PleaseFastenYourSeatbeltsSevereturbulence(湍流)cankillaircraftpassengers.Now,intestflightsovertheRockyMountain
ThebasicmodelofA3XXcancarrymorethan500passengers.A3XXwillbebiggerthantheB-2stealthbomber.
随机试题
国际私法上的公共秩序
Herpesvirus
男性,40岁。体重92公斤,身高168cm,无“三多一少”症状,其母有糖尿病。患者可能的诊断是
早期发现原位癌并加以手术是服降压药是
A.散风清热,泻火止痛B.清热泻火解毒,化瘀凉血止血C.清热泻火,散风止痛D.清热泻火,利尿通便E.清热解毒,散瘀止痛某男,45岁,身热烦躁、目赤口疮、咽喉及牙龈肿痛、衄血,证属火毒血热,医生建议一清颗粒,是因其可以(
某矿井倾斜巷道采用下山法施工,施工单位编制了施工作业规程,其中施工的安全技术措施及要求的主要条款为:1.工作面采用电动式凿岩机钻眼,钻眼必须湿式作业;2.工作面放炮工作由专职放炮工担任,考虑到围岩涌水量较少,决定采用非防水炸药;
计算机的硬件系统由运算器、控制器、存储器、输入设备和输出设备五大部件组成。()
小学阶段的儿童掌握逻辑推理规则表现在()。
(1)签署有关协议(2)乘机赴台湾(3)两岸会谈(4)受到当地群众热烈欢迎(5)两岸直航
唐《户令》:“诸应分田宅者,及财物,兄弟均分。妻家所得之财,不在分限。兄弟亡者,子承父分。兄弟俱亡,则诸子均分。其未娶妻者,别与聘财。姑姊妹在世者,减聘财之半。寡妻妾无男者,承夫分。”唐《丧葬令》:“诸身丧户绝者,所有部曲、客女、奴婢、店宅、资财
最新回复
(
0
)