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
医学
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what migh
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what migh
admin
2013-12-06
30
问题
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what might be called "the heroic age of Antarctic exploration". By their tremendous heroism, men such as Shackleton, Scott, and Amundsen caused a new continent to emerge from the shadows, and yet that heroic age, little more than a century old, is already passing. Modern science and inventions are revolutionizing the techniques of former explorers, and, although still calling for courage and feats of endurance, future journeys into these icy wastes will probably depend on motor vehicles equipped with caterpillar traction rather than on the dogs that earlier discoverers found so invaluable.
Few realize that this Antarctic continent is almost equal in size to South America, and enormous field of work awaits geographers and prospectors. The coasts of this continent remain to be accurately charted, and the mapping of the whole of the interior presents formidable task to the cartographers who undertake the work. Once their labors are completed, it will be possible to prospect the vast natural resources which scientists believe will furnish one of the large’ treasure hoards of metals and minerals the world has yet known, an almost inexhaustible sources of copper, coal, uranium, and many other ores will become available to man. Such discoveries will usher in an era of practical exploitation of the Antarctic wastes.
The polar darkness which hides this continent for the six winter months will be defeated by huge batteries of light, and make possible the establishing of airfields for the future intercontinental air service by making these areas as light as day. Present flying routes will completely change, for the Antarctic refueling bases will make flight from Australia to South America comparatively easy over the 5,000 miles journey.
The climate is not likely to offer an insuperable problem, for the explorer Admiral Byrd has shown that the climate is possible even for men completely untrained for expeditions into those frozen wastes. Some of his party were men who had never seen snow before, and yet he records that they survived the rigors of the Antarctic climate comfortably, so that, provided that the appropriate installations are made, we may assume that human beings from all countries could live there safely. Byrd even affirms that it is probably the most health climate in the world, for the intense cold of thousands of years has sterilized this continent, and rendered it absolutely germfree, with the consequences that ordinary and extraordinary sicknesses and disease from which man suffers in other zones with different climates are here utterly unknown. There exist no problems of conservation and preservation of food supplies, for the latter keep indefinitely without any signs of deterioration; it may even be that later generations will come to regard the Antarctic as the natural storehouse for the whole world. Plans are already on foot to set up permanent bases on the shores of this continent, and what so few years ago was regarded as a "dead continent" now promises to be a most active centre of human life and endeavor.
What is planned for the continent?
选项
A、Building dams along the coasts.
B、Setting up several summer resorts along the coasts.
C、Mapping the coast and the whole territory.
D、Setting up permanent bases on the coasts.
答案
D
解析
第三段有明确的答复:Present flying routes will be completely changed….over the5,000 miles journey.在南极建简易机场、地面站,进行洲际通航是人类计划做或正在做的事情。故选D。
转载请注明原文地址:https://kaotiyun.com/show/McU3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
A、Itisfunthoughnotwidelypracticed.B、Itistobenefityourdependents.C、Itisgettingpopular.D、Itisabsurd.B录音中讲到购买寿险
Ifyouarecaughtinadownpour,itisbettertorunforshelterthanwalk,researchersintheUSadvise.Thismaysoundobvious
Althoughspeechandwritingarethespecialmeansofcommunicatingofhumans,theinterchangealsotakesplaceinmanyotherway
OneofthemostnoticeablefeaturesofU.S.societyisthediversityofitspeople.
A、Alltheinjectionsgiven40yearsagowerecontaminated.B、Thecontaminatedvaccinesmaycausecancerinhumans.C、Vaccinesar
The______ofemotionalandpsychiatricdisordersthatcanpromptapersontoseektherapyiswide.
Stonetools,animalbonesandanincisedmammothtuskfoundinRussia’sfrigidfarnorthhaveprovidedwhatarchaeologistssayi
A、Ontheground.B、Incoldplaces.C、Onthehighestbranchesoftrees.D、Insidetreetrunks.A由“Verylikelythefastnestswere
Archaeologycantellusplentyabouthowhumanslookedandthewaytheylivedtensofthousandsofyearsago.Butwhataboutthe
A、Boysenjoyplayingwithcubesmorethangirls.B、Girlstendtogetexcitedmoreeasilythanboys.C、Girlsseemstostartreaso
随机试题
A.二氢蝶酸合成酶B.二氢叶酸还原酶C.四氢叶酸合成酶D.DNA回旋酶E.二氢蝶酸合成酶+二氢叶酸还原酶甲氧苄啶的抗菌机制主要是抑制()
男孩,5岁。反复咳嗽3个月,常于夜间咳醒,活动后加重,痰不多,无发热,使用抗生素无效,既往有湿疹史。查体:双肺呼吸音粗,无哮鸣音。最可能的诊断为()
A.提取物B.中药饮片C.有效部位D.有效成分E.中药材从植物、动物、矿物等中提取的一类或数类有效成分组成的提取物,其中结果明确成分的含量应占提取物的50%以上称为()。
常女士在办理房屋贷款时了解到常用的四种贷款方式中,()偿还的利息额最高。
我国古代园林以南方私家园林为代表,其中尤以()为最。
确定市场调查目标的主要步骤之一是()。
“汉语拼音的学习干扰英语音标的学习”体现的迁移种类是()
1,2,6,15,40,104,()
传记,从本质上说,是人的生命活动的记载,是人类生命的一种特殊载体。人的生命活动,不仪表现出生存和发展的渴求,而且表现出自身潜能的开发、释放。这种自身潜能的开发、释放,就是一种力的创造。创造,包括多种形式,有政治家治国平天下的才能展现,有哲学家、思想家在精神
(2004年真题)△ABC中,AB=5,AC=3,∠A=x,该三角形BC边上的中线长是x的函数y=f(x),则当x在(0,π)中变化时,函数f(x)取值的范围是[]。
最新回复
(
0
)