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
Are we at the beginning of another Age of Exploration? Perhaps even more important, are we at the beginning of【C1】______Age of C
Are we at the beginning of another Age of Exploration? Perhaps even more important, are we at the beginning of【C1】______Age of C
admin
2014-01-13
19
问题
Are we at the beginning of another Age of Exploration? Perhaps even more important, are we at the beginning of【C1】______Age of Colonization? As the population of the world increases towards the point【C2】______the earth can no longer support all the people【C3】______on it, the second question becomes urgent. Will we discover a new world, 【C4】______Columbus did, on which human life will be possible? At this point in the space age, no one can really answer these questions. We can say, 【C5】______that we will not see tomorrow the kind of space travel that【C6】______fiction and the movies have shown. It will be a long time before we have flight that run【C7】______to human colonies on the moon or on, one of the planets. We are not even going to be able to【C8】______immediate advantages of the minerals that we may find on the planets【C9】______our own solar system.
Great problems must be solved【C10】______we could send colonists out into place. The distances that must be【C11】______and the length of time it takes to do that can hardly be【C12】______There are also dangers that we still do not realty understand, from radiation, for example, or from pieces of matter【C13】______in space, or from contamination forms of life that might【C14】______there. There is also need for humans to take their own environment into space【C15】______them. So far no "island" has been discovered in space on which people can exist without systems that【C16】______life, and these systems must accompany any future space【C17】______Finally, on the most practical【C18】______there has to be enormous expense【C19】______in space exploration. The U. S. and Russian governments have already spent billions of dollars for projects【C20】______which they can receive a return only in knowledge and not in money.
【C9】
选项
A、from
B、in
C、on
D、with
答案
B
解析
固定搭配。in our solar system意为“在我们的太阳系内”,是固定搭配,用来修饰planets。故答案为B。
转载请注明原文地址:https://kaotiyun.com/show/IlhO777K
0
考博英语
相关试题推荐
Everysociety,beginningwithsomeslightinclinationinonedirectionoranother,carriesitspreferencefartherandfarther,i
Everysociety,beginningwithsomeslightinclinationinonedirectionoranother,carriesitspreferencefartherandfarther,i
Everysociety,beginningwithsomeslightinclinationinonedirectionoranother,carriesitspreferencefartherandfarther,i
ByaboutA.D.500theMoundBuilderculturewasdeclining,perhapsbecauseofattacksfromothertribesorperhapsbecauseofs
ByaboutA.D.500theMoundBuilderculturewasdeclining,perhapsbecauseofattacksfromothertribesorperhapsbecauseofs
I’venever______thetheorythatpeoplearemoreimportantthananimals.
Weallhaveoffensivebreathatonetimeoranother.Inmostcases,offensivebreathemanatesfrombacteriainthemouth,althou
Anothertrendofthe1990sinthecomputerindustryistowardmultimediaformats,asthemarketforconventionaltypesofcomput
Anothertrendofthe1990sinthecomputerindustryistowardmultimediaformats,asthemarketforconventionaltypesofcomput
随机试题
社工小范到贫困家庭中去家访,他看到在狭窄的平房里居住着三代人,睡觉、学习、吃饭都在一起。没有一件像样的家具,因为也没地方摆放。孩子的学习资料堆在餐桌上,老人的药品放在床头。这里,小范获得评估信息的方法属于()。
通过个人的活动与努力而获得的社会角色称为()
Shoulddoctorseverlietobenefittheirpatient—tospeedrecoveryortoconcealtheapproachofdeath?Inmedicineasinlaw,
A.垂体ACTH微腺瘤B.小细胞性肺癌C.肾上腺皮质腺瘤D.肾上腺皮质腺癌E.肾上腺皮质结节状增生(2006年第123题)引起异位性ACTH综合征的原因是
经批准环境保护延期验收申请后的建设单位试生产的期限最长不超过()。核设施建设项目试生产的期限最长不超过()。
甲公司生产某种产品,该产品单位售价160元,单位成本120元,2012年度销售360万件。2013年为扩大销售量、缩短平均收款期,甲公司拟实行“5/10、2/30、n/50”新的信用政策;采用该政策后,经测算:产品销售额将增加15%,占销售额40%的客户会
下列税种中,采用比例税率征收的有()。
8位大学生打算合资创业,在筹资阶段,有2名同学决定考研而退出,使得剩余同学每人需要再多筹资1万元;等到去注册时,又有2名同学因找到合适工作而退出,那么剩下的同学每人又得再多筹资几万元?()
在下列指令中,隐含使用AL寄存器的指令有( )条。 SCASB; XLAT; MOVSB; DAA; NOP; MULBH;
PresidentBushhasproposedaddingoptionalpersonalaccountsasoneofthecentralelementsofamajorSocialSecurityreformp
最新回复
(
0
)