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
37
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://jikaoti.com/ti/geGsFFFM
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
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
TheCarnegieFoundationreportsaysthatmanycollegeshavetriedtobe"allthingstoallpeople".Indoingso,theyhaveincre
WhichofthefollowingistrueabouttheInternetaccordingtothetalk?
Giventhelackoffitbetweengiftedstudentsandtheirschools,itisnotsurprisingthatsuchstudentsoftenhavelittlegood
"Ido."ToAmericansthosetwowordscarrygreatmeaning.Theycanevenchangeyourlife.Especiallyifyousaythematyourow
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcreditin
Consideringnaturalresources,whatshouldAmericansdoaccordingtothepassage?
Itwasnot"thecometofthecentury"expertspredicteditmightbe.However,Kohoutekhasprovidedabonanzaofscientificinfo
随机试题
下列腹水检查结果哪项对诊断结核性腹膜炎有重要意义
下列不宜用胰岛素的病症是
下列哪些脏腑的病变可引起咳嗽
患者,男,15岁。因发热、头痛3天入院,体查:体温39.8℃,脉搏120次/min,颈抵抗,胸前发现数个小出血点及小淤斑.克氏征弱阳性,布氏征弱阳性,血常规:WBCl5×109/L,NO.82,L0.18,脑脊液混浊,压力340mmH2O,细胞总数1100
我国某国际工程公司A,在国际公开竞争招标中,中标获得非洲S国的一项首都垃圾电站的设备采购与安装工程,该项工程合同金额为5000万美元,是世界银行贷款项目。该工程地处热带,常年高温、少雨,年平均温度达300C,最高气温达480C,属非洲高气温国家之一。该国
统治阶级创制各种法律规范的目的,归根结底是要从社会生活各个方面确认、保护、发展现实中有利于本阶级利益的政治关系。()
虽然用椰子油制造的不含奶的咖啡伴侣每勺含2克饱和脂肪,或者说它所含的饱和脂肪比同样数量的牛奶高7倍,且这种咖啡伴侣通常不含胆固醇,但是,这样一勺含2克饱和脂肪的咖啡伴侣比含有2毫克胆固醇的同样数量的一勺牛奶使消费者血液中的胆固醇含量增高很多。以下哪项
Wheredoesthisconversationtakeplace?
WhatdoestheManMean?
Mostpeoplewouldbe【C1】______bythehighqualityofmedicine【C2】______tomostAmericans.Thereisalotofspecialization,a
最新回复
(
0
)