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
2019-01-25
49
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.【T1】
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.【T2】
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 perform specific tasks on shuttle flights lasting 18 days or less.【T3】
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.【T4】
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 Freighter collided with the Spektr module, puncturing it. Spektr had to be sealed off to prevent all the air from leaking from the spacecraft.【T5】
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.
【T2】
选项
答案
和平号空间站的技术困难带来了一个未曾想到的好处,即这些技术困难事实上迫使美俄双方的合作比其预想的更加紧密。
解析
转载请注明原文地址:https://kaotiyun.com/show/mzCd777K
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
Cairo,thecradleofcivilization,theMeltingPotofAncientandModernEgyptianCivilizations.ItisthelargestcityintheM
Hawaii’snativeminorityisdemandingagreaterdegreeofsovereigntyoveritsownaffairs.Butmuchofthearchipelago’spoli
Although【21】______circuitsmadecomputerssmaller,theprocessingunitsstillconsisted【22】______anumberofcircuits
WhichofthefollowingistrueabouttheInternetaccordingtothetalk?
WhichofthefollowingisNOTmentionedasthethingincludedinyourlist?
AuniversitystudentinNairobi,Kenya,wasstoppedforatrafficviolationtheotherday.Thepolicemantookouthisticketboo
Itwasnot"thecometofthecentury"expertspredicteditmightbe.However,Kohoutekhasprovidedabonanzaofscientificinfo
Inthe1960stheWestCoastbecameanimportantcenterforrockmusic.LosAngelesandSouthernCaliforniaarefamousforsunshi
OnApril20,2000,inAccra,Ghana,theleadersofsixWestAfricancountriesdeclaredtheirintentiontoproceedtomonetaryun
SupposethatyouhavegotthenewsthattheUniversityofWashingtonisofferingascholarshipinmathematicsandthatyouhave
随机试题
关于子宫内膜异位症的治疗,下列说法正确的是()
A.霍乱弧菌B.空肠弯曲菌C.海鸥弯曲菌D.幽门螺杆菌E.副溶血弧菌25℃醋酸吲哚水解试验阳性
女性患者,23岁。间歇性心悸,气促3年,劳累时加重。1周前受凉后出现发热、咽痛、咳嗽,4天前出现心悸和气促加剧,双下肢水肿。查:T37℃,R34次/分,P108次/分,律不整,BP80/50mmHg。半坐位,四肢指(趾)端及唇轻度发绀,扁桃体Ⅱ肿大,无脓性
小青龙汤中主要起温肺化饮作用的药物是()
患者,女,18岁。每次月经错后10天左右,月经量少色淡,身倦乏力,头晕心悸,舌质淡,脉细弱。宜首选的药物类别是
患者,女性,65岁,严重腹泻、脱水,意识障碍。查体:血糖33,3mmol/L,尿酮体(±)。意识障碍发生的原因是
设备监理工程师在设备安装阶段协助业主的工作主要有( )。
口腔颌面外科常采用的闭式引流是()。
为类MyClass重载赋值运算符时,应将其重载为类的
Thestudyoftherelationshipbetweenlanguageandsocietyiscalled
最新回复
(
0
)