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
Should the U.S. halt human space flight? The Columbia accident has revived the debate on whether the rewards of
admin
2009-06-15
66
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 net 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.50
B Astronauts are key to this expanded exploration.47
C It’s the lack of commitment to get started.49
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.46
F Our ability to send humans into space and have them return gives us amazing information about ourselves and our universe.48
选项
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/CuQd777K
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
1Tiredofsocialnetworking?LoggingoffFacebook?You’reprobablynottheonlyone.Fearingfortheirprivacyorperhapsjust
IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenareoldenough,theytake
Britishteenagersaredamagingtheirhealthbynotgettingenoughsleepbecausetheyaredistractedbyelectronicgadgetsinthe
ABiologicalClockEverylivingthinghaswhatscientistscallabiologicalclockthatcontrolsbehavior.Thebiologicalcloc
WhathappenedtoPetelastFourthofJuly?FireworkseyeinjuriescanresultineachofthefollowingEXCEPT______.
Theseprogrammesareofimmensevaluetooldpeople.
ScienceandTechnologyThereisadifferencebetweenscienceandtechnology.【B1】______Sciencehastodowithdiscoveringth
ScienceandTechnologyThereisadifferencebetweenscienceandtechnology.【B1】______Sciencehastodowithdiscoveringth
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
ADigitalCodeHasWideApplicationsBFloppyDisksAreOutdatedCCDsAreDurableDCD’sWorkingPrincipleIsExplainedE
随机试题
5岁,呕吐腹泻10h。突然脐周阵发性腹痛。恶心呕吐3次~4次,大便5次~6次,初为蛋花汤样后呈赤豆汤血水便,腥臭、无脓,腹胀,T:39℃,腹软。不固定压痛,未及包块患儿最可能的诊断是()
超声波检测是检验焊缝内部缺陷的一种准确而可靠的方法,它可以显示出缺陷的种类、形状和大小,并可作永久的记录。
某企业着手编制2007年6月份的现金收支计划,预计2007年6月初现金余额为8000元:月初应收账款4000元,预计月内可收回80%;本月销货50000元,预计月内销售的收款比例为50%;本月需要采购材料的成本为8000元,企业每月采购金额中70%当月付清
某有限责任公司监事在执行公司职务时违反公司章程,给公司造成了损失。该公司设立董事会,对于要求该监事赔偿公司的诉讼,下列表述正确的有()。
小赵(女)和小田(男)于2010年登记结婚。2012年,小赵父亲因病去世,在其生前所立遗嘱中,指定由小赵继承一辆小轿车和五万元,则()。
某客轮以同一速度往返于两码头之间。它顺流而下,行了8小时,逆流而上,行了10小时,如果水流速度是每小时3千米,则两码头之间的距离是:
下列关于急性根尖周炎发展过程描述哪些是正确()。
下列说法正确的是()。
简述马克思主义在中国传播的过程。
Whatistheconversationmainlyabout?
最新回复
(
0
)