首页
登录
职称英语
Are we at the beginning of another Age of Exploration? Perhaps even more imp
Are we at the beginning of another Age of Exploration? Perhaps even more imp
游客
2025-04-15
10
管理
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. [br] 【C5】
选项
A、however
B、moreover
C、otherwise
D、therefore
答案
A
解析
逻辑关系。上句提到no one can really answer these questions(没有人能回答这些问题),本句又说We can say(我们可以说),明显存在转折的关系。选项中,只有however(然而)表转折。故答案为A。
转载请注明原文地址:https://tihaiku.com/zcyy/4038831.html
相关试题推荐
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
AreweatthebeginningofanotherAgeofExploration?Perhapsevenmoreimp
随机试题
Whatdoesthespeakerthinkofoldpeople?Withtheirwideknowledge,theycan__
Themoretimescientistsspenddesigningcomputers,themoretheywonderath
Text2Aslawmakersfightoverwhatcond
肾小球性蛋白尿的性质是()。A.白蛋白 B.溶菌酶 C.血红蛋白 D.肌
原尿与血浆成分相比,最大不同在于 A.葡萄糖含量B.Na+含量C.尿素含量
下列描述,属于垄断竞争市场的特点的是()。 A.生芦者众多,各种生产资料可
男性患者,30岁,左颌下肿胀半年,有消长史。检查:触及2cm×2cm大小囊性肿物
问卷调查法中问卷的整体架构应该包括()。A.职位基本信息 B.职位设立的目的
患者女,28岁。因"夜班劳累"后低热伴干咳、胸痛、乏力、闭经2个月就诊。查体:T
血栓闭塞性脉管炎的治疗A.高位结扎及剥脱术 B.旁路转流术 C.切开取栓术
最新回复
(
0
)