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 first flight of the Space Shuttle Columbia in the spring of 1981 was a revolutionary development in space【B1】______. Un
The first flight of the Space Shuttle Columbia in the spring of 1981 was a revolutionary development in space【B1】______. Un
admin
2013-04-08
32
问题
The first flight of the Space Shuttle Columbia in the spring of 1981 was a revolutionary development in space【B1】______. Unlike the rockets of the previous 20 years, Columbia has the【B2】______advantage of being specially designed to return to earth and make【B3】______flights. Among the large number of projects scientists are【B4】______for its future use, the most exciting, perhaps, is that the first steps can now be taken towards【B5】______human【B6】______in space. The present Space Shuttle can only stay in space for about a week, but it could take people out to【B7】______ "islands" where they stay for longer periods. By the year 2050, scientists estimate that man will be able to construct permanent【B8】______
The first "islands" would be energy stations.【B9】______. However, if the original could【B10】______, 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.
【B11】______.
【B1】
选项
答案
exploration
解析
转载请注明原文地址:https://jikaoti.com/ti/nzVFFFFM
0
大学英语四级
相关试题推荐
Peopletendtohavecontradictoryattitudesaboutloudnoise.Ontheonehand,theymayenjoylisteningtoloudrockmusic.Att
A、John’sdeterminationistheimportantfactortohissuccess.B、Johnisdeterminedtogetthekey.C、Johnisdifficulttowork
Researchersknowtherearemanydrugsthatcanalterourbodilyprocessesinsuchaway【C1】______affectouremotionalexperience
FourDangerstotheEuroOperatingasinglecurrencyisnotgoingtobeeasy.Europeaneconomicandmonetaryunionwillnot
A、Atareceptiondesk.B、Atastore.C、Inabank.D、Inahotel.C对话中男士提到passbook(银行存折),deposit(存款),savingsaccount(储蓄账户),女士提到bal
InformedpublicdebatecriticaltofutureofgenomicmedicineJustmentioning"stem-cellresearch"or"genomicmedicine"can
InformedpublicdebatecriticaltofutureofgenomicmedicineJustmentioning"stem-cellresearch"or"genomicmedicine"can
Interestinpursuinginternationalcareershassoaredinrecentyearsenhancedbychronic(长久的)personnelshortagesthatarecaus
A、Inahotel.B、Atadinnertable.C、Inthestreet.D、Attheman’shouse.A
Largecompaniesneedawaytoreachthesavingsofthepublicatlarge.Thesameproblem,onasmallerscale,facespractically
随机试题
关于用人单位向劳动者支付报酬的说法,正确的有()。
A.普萘洛尔B.硝酸甘油C.奎尼丁D.利多卡因E.维拉帕米对变异型心绞痛最有效的是
乌梅的功效是()白果的功效是()
A.绞痛后出现血尿B.无痛性间歇性全程肉眼血尿C.无痛性间歇性肉眼血尿,终末加重D.长期站立、活动后出现血尿E.膀胱肿瘤切除放疗后出现血尿膀胱癌()
银行业金融机构建立长期、长效发展机制的基石是()。
现代企业制度是适应现代化大生产和市场经济发展要求的,其特征包括()。
擦耳瓦、袷袢、旗袍分别是()的传统服饰。
某4S店提供机动车试乘服务时,发生交通事故,致使试乘人李某受轻伤。现李某请求4S店赔偿损失,下列说法错误的有()。
A.溶解吸收B.分离排出C.机化D.包裹钙化肺结核瘤的愈合方式是
[2014年]设E为三阶单位矩阵.求满足AB=E的所有矩阵B.
最新回复
(
0
)