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
Neither the Americans nor the Russians have the resources to continue human space flight on their own;both sides know they need
Neither the Americans nor the Russians have the resources to continue human space flight on their own;both sides know they need
admin
2011-01-08
30
问题
Neither the Americans nor the Russians have the resources to continue human space flight on their own;both sides know they need each other.【61】
It’s much easier and cheaper to get used to each other and to blend differing operating styles, languages, and systems on the aged Mir (a Russian word for "peace" )than trying to do that while jointly building a new space station.
NASA, in fact, calls its program of shuttle flights to Mir Phase 1 of the International Space Station(ISS). Phase 2 marks the beginning of actual construction. The procedures used to dock the shuttle to Mir, for example, also will be used as a lifeboat for the ISS. And Progress freighters, like the one that crashed into Mir in June, will haul cargo to the ISS.【62】
One unintended benefit of Mir’s technical troubles is that they have actually forced the two nations to work much more closely together than they had planned.
Except for a brief period in the 1970s with Sky lab, NASA has never operated a space station; the Russians have been running them for years. Astronauts have long been trained intensively to per¬form specific tasks on shuttle flights lasting 18 days or less. 【63】
Russian astronauts, however, learn more general skills, since they spend many months in orbit and no one can forecast all the problems they might encounter.
As a result of shuttle-Mir experience, NASA is revising astronaut training to include more of the general skills they will need on the ISS.
NASA decided to send astronauts to Mir based on its long record of safe operation. But this year, crews aboard Mir have faced two of the most serious emergencies in the history of human space flight. 【64】
In February, an oxygen generator caught fire, shooting out 4-foot-long jets of flame like;fire extinguishers were bolted in place, delaying reaction to the fire.
In June, a Progress Freight¬er collided with the Spektr module, puncturing it. Spektr had to be sealed off to prevent all the air from leaking from the spacecraft. 【65】
The ancient computer that controls Mir has failed many times, causing most other systems, including the one that keeps the station’s solar panels pointed at the sun, to shut down.
One failure in August occurred while a Progress was docking. Last week, the computer crashed again, the carbon dioxide removal system shut down, and a mysterious brown flu-id-probably rocket fuel — appeared to leak from the station.
【61】
选项
答案
美俄双方如果能够相互适应并且将不同的操作风格、语言及体制协调起来共同投入老和平号空间站的开发要比双方重新合作建立新的空间站容易得多,并且能够节省更多资金。
解析
转载请注明原文地址:https://jikaoti.com/ti/v8asFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
TheU.S.SupremeCourthasforbiddenprayersinpublicschools,butmanyAmericansclingtotheideathattheireducationalsys
Thefutureofspaceexplorationdependsonmanythings.Itdependsonhowtechnologyevolves,howpoliticalforcesshapecompeti
Fromyourlifeexperienceyoufindthatasenseofhumorisveryimportantindealingwiththeproblemsinyourlifeaswellas
Aspearorarobothasthequalityoftechnologyonlywhenit______.
Thetangohasprobablytraveledfurtherandgonethroughmorechangesthanalmost【C1】______Africanslavesbroughtthetangot
Ifyouintendusinghumorinyourtalktomakepeoplesmile,youmustknowhowtoidentifysharedexperiencesandproblems.Your
Ifyouintendusinghumorinyourtalktomakepeoplesmile,youmustknowhowtoidentifysharedexperiencesandproblems.Your
ItissaidthatinEnglanddeathispressing,inCanadainevitableandinCaliforniaoptional.Smallwonder,Americanslifeexp
Theauthorthinksontheproblemofcloning,Ms.Macklinistoo
Whichwordbestdescribesthelawyers’predictionofthechangeindivorcerate?
随机试题
患者,男,29岁。反复喘息发作6年,再次发作6天,意识不清1天。6年前开始无明显诱因出现喘息发作,多在7~9月份出现,每次喘息发作时不能活动,有时经10分钟左右可自行缓解,有时在当地医院应用氨茶碱静脉注射可缓解。当地医院诊断为“支气管哮喘”,患者间断应用“
下列对消费者剩余的描述中,不正确的是()
ThedoctorinsistedthatPaul’smother______examinedthoroughly.
在同一工程项目中,同一厂家、同一牌号、同一规格的钢筋连续()批进场检验均一次检验合格时,其后的检验批量可扩大一倍。
某建筑工程有限公司上报的2008年建筑业总产出为40263.4万元,从业人员3258人,工资总额3596.08万元。经查,该公司无法提供2008年的财务报表和原始记录等资料,没有具体的核算资料,上报的统计数据没有任何依据,当地统计局认定该公司已构成了统计违
由于可转换公司债券的期权是一种美式期权,因此,转股期限越长,转股权价值就越大,可转换公司债券的价值越高。()
关于项目总投资中流动资金的说法,正确的是()。
Jennyfeelsablankness________sheoncefeltasenseofpurposeandexcitement.
计算其中D={(x,y)Ix2+y2≥2x}.
备件管理的活动不包括()。
最新回复
(
0
)