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
A、It was the first rocket ever made in history. B、Its first flight was in 1991. C、Its first flight signified a great progress in
A、It was the first rocket ever made in history. B、Its first flight was in 1991. C、Its first flight signified a great progress in
admin
2019-04-23
63
问题
[19]The first flight of the Space Shuttle Columbia in the spring of 1981 was a revolutionary development in space exploration. Unlike the rockets of the previous 20 years,[20]Columbia has the enormous advantage of being specially designed to return to earth and make further flights. Among the large number of projects, scientists are investigating its future use, and the most exciting, perhaps, is that the first steps can now be taken towards establishing human colonies in space. The present Space Shuttle can only stay in space for about a week, but it could take people out to build "islands" where they stay for longer periods. By the year 2050 scientists estimate that man will be able to construct permanent settlements.
The first "islands" would be energy stations.[21]There would be no hope of establishing colonies in space unless people could obtain energy there, instead of getting it from the earth. However, if the original could convert solar energy into electricity, it would be possible to provide the equivalent of a filling station for cars on earth, allowing the Space Shuttle to refuel and stay in orbit longer periods of time.
If this initial project was successful, much larger solar energy stations would be constructed later with materials brought out by the Shuttle.
Eventually, man would be able to construct an "inhabitable planet" in space.
19. What can we learn from the passage about the Space Shuttle Columbia?
20. What is the big advantage of the Space Shuttle Columbia?
21. What is the basic requirement for establishing colonies in space?
选项
A、It was the first rocket ever made in history.
B、Its first flight was in 1991.
C、Its first flight signified a great progress in space exploration.
D、It can stay in space for about a month.
答案
C
解析
细节题。短文开头处明确提到,哥伦比亚太空飞船(Space ShuttleColumbia)于1981年春天的第一次飞行对于太空探索来说具有革命性的进展,故答案为C)。
转载请注明原文地址:https://kaotiyun.com/show/6XZ7777K
0
大学英语四级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessaybasedonthepicturebelow.Youshouldstartyouressaywitha
A、Itishardtofindevidenceandwitnesses.B、Theydon’tuseguns.C、Suchkindofcrimesareusuallynotdetected.D、Itishard
Low-carbonFuture:WeCanAffordtoGoGreen[A]Tacklingclimatechangewillcostconsumerstheearth.Thosewhocampaignfora
A、Itchargesatareducedrate.B、Itisavailableeveryday.C、Itisopentoallpeople.D、Itisprovidedonlyintheevening.D
A、Theyaccountforthelargestproportion.B、90percentofthemarereasonable.C、Mostofthemarefordelayedairtickets.D、F
A、Itwillprobablycauseheartdisease.B、ItisthesymbolofEuropeanlifestyle.C、Itisnotasdeliciousasredmeat.D、Itis
A、Hewasinterestedinstylishdresses.B、Hewasabletomakealotofmoney.C、Hewasayoungstudentinthe1960s.D、Hewasa
大多数人都认同骑自行车环保并且能够有效避免交通拥堵的观点。然而,他们依然有充分的理由放弃骑自行车出行。最明显的理由是公共交通很便利。然而最重要的原因是他们出于对安全的忧虑。因为自行车道(lane)常常被汽车占用,人们不得不冒着生命危险骑行在机动车道上。此外
北京首都国际机场(BeijingCapitalInternationalAirport)位于北京市中心东北方向32公里处。机场于1958年投入使用,至今已有50多年的历史。2012年,机场旅客吞吐量(passengerthroughput)超过8千
TheLostArtofListeningA)"Whywon’theevenlistentomyidea?""WhyamIcutoffbeforeIprovidethewholestory?"How
随机试题
(2018年淄博)以下陈述正确的是()
根据以下资料,回答以下问题。以下折线图反映了哪一时间段内全国城市人均公园绿地面积同比增量的变化趋势?
50岁,男性,外伤后致胫腓骨中下1/3开放性骨折,经治疗,3个月后复查X线片见骨折端略有移位,骨折线清晰,你认为影响骨折愈合的最主要的原因
传染性非典型肺炎的密切接触者应隔离观察
某一特定主体的资金运动,主要包括资金的投入和折算、循环与收回、支付与赔偿。()
北岸实业是国内一家房地产新秀,在众多的房地产大鳄下生存需要经过漫长而艰辛的品牌树立历程,以节能设计和绿色材料为主打的第五代居住环境开发试验项目,需要更新的知识领域、更精细的工作态度和更卓越的服务意识,公司决定投入大量人力物力对成立的项目小组人员进行系统而具
给定资料1茉莉花香扑鼻而来,村屯道路干净整洁,一派山水田园风光——这是H县石井村的新景象。“这风光来之不易呀。”村支书老杨感叹。村头屯尾越来越多的垃圾,曾让他头疼不已。“乡亲们腰包鼓起来了,消费向城里看齐,垃圾也与城里‘接轨’,农药瓶、农膜、塑料
下列关于我国国土资源的叙述,正确的是()。
吴老师一句口头禅“简单”所能展示的吴老师风貌不包括( )。“这道题目还不简单”这句话中表达的意思是( )。
われわれは、よく、「体が覚えている」とか「手が覚えている」という言い方をすることがある。意識的にものを考えるときには、「頭を使う」という言い方をするように、頭、脳を使って考えるが、人の心の働きには、脳の活動だけで説明しきることのできないものがたく
最新回复
(
0
)