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
The Mir Space Station The Russian Mir Space Station, which came down in 2001 at last after 15 years of pioneering the concep
The Mir Space Station The Russian Mir Space Station, which came down in 2001 at last after 15 years of pioneering the concep
admin
2014-09-13
32
问题
The Mir Space Station
The Russian Mir Space Station, which came down in 2001 at last after 15 years of pioneering the concept of long-term human space flight, is remembered for its accomplishments in the human space flight history. It can be credited with many firsts in space.
During Mir’s lifetime, Russia spent about US $4.2 billion to build and maintain the station.
The Soviet Union launched Mir, which was designed to last from three to five years, on February 20, 1986, and housed 104 astronauts over 12 years and seven months, most of whom were not Russian. In fact, it became the first international space station by playing host to 162 people from 11 countries. From 1995 through 1998, seven astronauts from the United States took turns living on Mir for up to six months each. They were among the 37 Americans who visited the station during nine stopovers by space shuttles.
The more than 400 million the United States provided Russian for the visits not only kept Mir operating, but also gave the Americans and their partners in the international station project valuable experience in long-term flight and multinational operations.
A debate continues over Mir’ s contributions to science. During its existence, Mir was the laboratory for 23, 000 experiments and carried scientific equipment, estimated to be worth $ 80 million, from many nations. Experiments on Mir are credited with a range of findings, from the first solid measurement of the ration of heavy helium(ft, )atoms in space to how to grow wheat in space. But for those favouring human space exploration, Mir showed that people could live and work in space long enough for a trip to Mars. The longest single stay in space is the 437. 7 days that Russian astronaut Valery Polyakov spent on Mir from 1994 to 1995. And Sergie Avdeyev accumulated 747. 6 days in space in three trips to the space station. The longest American stay was that of Shannon Lucid, who spent 188 days aboard Mir in 1996.
Despite the many firsts Mir accomplished, 1997 was a bad year out of 15 for Mir. In 1997, an oxygen generator caught fire. Later, the main computer system broke down, causing the station to drift several times and there were power failures. Most of these problems were repaired, with American help and suppliers, but Mir’ s reputation as a space station was ruined.
Mir’ s setbacks are nothing, though, when we compare them with its accomplishments. Mir was a tremendous success, which will be remembered as a milestone in space exploration and the space station that showed long-term human habitation in space was possible. But it’ s time to move on to the next generation. The International Space Station being built will be better, but it owes a great debt to Mir.
One of the contributions Mir makes to science is that it______.
选项
A、helps astronauts get close to Mars
B、enables scientists to develop new scientific equipment
C、sets a record of the longest single human stay in space
D、shows that multinational operations in space are less expensive
答案
C
解析
第五段主要介绍了和平号空间站对科学作出的贡献,除了为人类探索空间提供实验场地和没备外,和平号空间站还证明人们可以在太空中停留足够长的时间。
转载请注明原文地址:https://kaotiyun.com/show/RKQd777K
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
StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainof
HowTwoGreatConflictsHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedt
WardoffTravelBugs1Astheholidayseasonapproaches,sodoestheprospectofjetlag,anupsetstomachorsunburn.With
UnderstandingAutism1Autism(孤独症)isalife-longdevelopmentaldisabilitythatpreventsindividualsfromproperlyunderstanding
EarBreakthroughNewresearchpublishedinthejournalCurrentBiologyhasaddedsignificantlytounderstandingofhowthee
MyLifeatRendaIlearnedveryquicklythatbeingateachingassistant(TA)attheUniversityofIowawouldbedifferentfrom
Whydoestheauthormention"pyramidbuilders"?Theword"devastating"inthelastparagraphcouldbebestreplacedby
Argumentamongthespeakersattheconferenceisborderingonviolence.
WaterFromthebeginning,waterhasfurnishedmanwithasourceoffoodandahighwaytotravelupon.Thefirst(51)arosewhere
随机试题
1.题目名称:三相异步电动机的绝缘测试。2.题目内容:(1)测量定子绕组间和绕组对地的绝缘电阻,并将测试结果填入表I一7内。(2)判别定子绕组的首、尾端。(3)将电动机作三角形连接(或作星形连接)。3.时
现代产品是一个整体概念,产品的造型属于()
对银行存款已入账而企业未入账的未达账项,企业应当()。
A、手术B、随访C、药物治疗D、补充血容量E、消除病因慢性胃炎胃黏膜活检示肠上皮组织转化时()
患者因急性肠梗阻开腹探查证实为降结肠肿物所致,发现近端肠管充血水肿严重。下列哪种术式不宜采用
处方限量规则中()
残疾人专用品及残疾人组织和单位进口货物属法定减免范畴。()
纳税人取得的以下所得或发生的以下事项应按照“工资、薪金所得”缴纳个人所得税的有()。
甲并非既通晓国学又通晓西学。若此为真,则可推知()。
8个房间共用一只空气开关,一只空气开关只能允许同时使用6台空调。现有8个房间各安装了一台空调,问在一天(24小时)内平均每个房间最多可使用空调多少小时?()
最新回复
(
0
)