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
Some people, in all seriousness, say that humans will be living in space within the next hundred or so years. Planet Earth will
Some people, in all seriousness, say that humans will be living in space within the next hundred or so years. Planet Earth will
admin
2010-07-14
20
问题
Some people, in all seriousness, say that humans
will be living in space within the next hundred or so
years. Planet Earth will be crowded, dirty and lack of 【S1】______
resources. A sort of exodus (移居) of mankind will
begin.
Spaceships will be assembled so that they revolve
around the earth. Some may orbit around Mars. These
space stations will be serviced by space buses. We saw
the first space bus launch in April 1981. This was 【S2】______
"Columbia", it made several orbits around the earth and 【S3】______
then returned, landing on a huge dry lake bed in
California. "Columbia" will be used again. Previous
spaceships have been abandoned, only the nose cone
being used to bring the crews back to earth. 【S4】______
Upon established, each space station will generate 【S5】______
its own atmosphere and have its own agriculture. It will
need to rotation to provide an artificial gravity; people 【S6】______
will be forced inwards from the centre by centrifugal 【S7】______
(离心力) force.
The moon and Mars could become new sources of
new materials. Driving through space will no longer 【S8】______
need Earth fuel—the energy would come from the
sun. This energy would be converted from electricity to 【S9】______
work magnetic rockets.
That all sounds quite fantastically but, with the 【S10】______
rapid development of modern technology, who knows
about what the future holds?
【S7】
选项
答案
inwards→outwards
解析
转载请注明原文地址:https://jikaoti.com/ti/QeFMFFFM
0
大学英语六级
相关试题推荐
Theoldestandsimplestmethod,then,ofdescribingdifferencesinpersonalitywasto【B1】______peopleaccordingto【B2】______.
A、In1938.B、In1946.C、In1955.D、DuringtheWorldWarII.B文中提到虽然举办这个电影节的想法在1938年就提出,但因为二战的影响,直到1946年才举办第一届电影节,故选B。
A、25pence.B、50pence.C、75pence.D、95pence.C对话中关于票价也出现了三个数字,在听的时候要注意记下来。“It’sonepoundfiftyforadultsandseventy-fivep
A、TheDailyStar.B、TheTimes.C、TheDailyTelegraph.D、TheDailyMirror.AWhichnewspaperisnotseriousnewspaper?根据文中“theDai
Ifyouintendusinghumorinyourtalktomakepeoplesmile,youmustknowhowtoidentifysharedexperiencesandproblems.Your
Theaboveexperimentshowsthatnotalltheinformationwhichisreceivedcanberetainedforevenasecond.Theinformati
Eatingbetterandmoreadventurouslyisbecominganobsession,especiallyamongpeoplewithmoneytospend.Healthiereating—and
AIDS(AcquiredImmuneDeficiencySyndrome)isafataldiseasethatdestroystheimmunesystem.MorethanfouroutoffiveAIDSc
Ifyougetintoabathfullofwater,______(有一部分水就会漫到地上).
随机试题
在考生文件夹下,已有“tTest.txt”文本文件和“samp1.mdb”数据库文件,“samp1.mdb”中已建立表对象“tStud”和“tScore”。试按以下要求,完成表的各种操作:(1)将表“tScore”的“学号”和“课程号”两个字段设置为复合
我国未来中央与地方权力关系的基本趋势之一是【】
正式组织与非正式组织共生共存是组织的天然属性,从这两种组织的本质出发,使非正式组织和正式组织有机配合,就是使组织成员的心理和信息顺利沟通。()
所有权人有权向第三人追索原物的情况有()
单侧肺局限性哮鸣音可见于
下列土地中,不适宜进行城市建设的有()。
会员大会是会员制证券交易所的决策机构。()
音乐课程目标主要体现在情感、态度与价值观、过程与方法、知识与技能三个层面,其中音乐知识与技能主要包括三个方面的内容,下面的哪项内容不属于音乐知识与技能的范畴?()
美国科学家发现,雄性非洲慈鲷鱼能通过观察其他雄性成员在抢占地盘争斗的表现而评估对手的实力,在加入战斗时总是挑战那些最弱的对手。这是科学家首次发现鱼类具有这种推理能力。由此可以推知()。
营销近视症是指不适当地把主要精力放在产品上或技术上,而不是放在市场需要上.结果导致企业丧失市场.失去竞争力。根据上述定义,下列最符合营销近视症的一项是:
最新回复
(
0
)