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
考研
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic an
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic an
admin
2011-01-17
30
问题
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic and nationalistic. Columbus went west to look for better trade routes to the Orient and to promote the greater glory of Spain. Lewis and Clark journeyed into the American wilderness to find out what the U.S. had acquired when it purchased Louisiana, and the Appolo astronauts rocketed to the moon in a dramatic show off technological muscle during the cold war.
Although their missions blended commercial and political-military imperatives, the explorers involved all accomplished some significant science simply by going where no scientists had gone before.
Today Mars looms (隐约出现) as humanity’s next great terra incognita (未探明之地). And with doubtful prospects for a short-term financial return, with the cold war a rapidly fading memory and amid a growing emphasis on international cooperation in large space ventures, it is clear that imperatives other than profits or nationalism will have to compel human beings to leave their tracks on the planet’s reddish surface. Could it be that science, which has long played a minor role in exploration, is at last destined to take a leading role? The question naturally invites a couple of others: are there experiments that only humans could do on Mars? Could those experiments provide insights profound enough to justify the expense of sending people across interplanetary space?
With Mars the scientific stakes are arguably higher than they have ever been. The issue of whether life ever existed on the planet, and whether it persists to this day, has been highlighted by mounting evidence that the Red Planet once had abundant stable, liquid water and by the continuing controversy over suggestions that bacterial fossils rode to Earth on a meteorite (陨石) from Mars. A more conclusive answer about life on Mars, past or present, would give researchers invaluable data about the range of conditions under which a planet can generate the complex chemistry that leads to life. If it could be established that life arose independently on Mars and Earth, the finding would provide the first concrete clues in one of the deepest mysteries in all of science: the prevalence of life in the universe.
At present, a probable inducement for countries to initiate large-scale space ventures is ______.
选项
A、international cooperation
B、nationalistic reasons
C、scientific research
D、long-term profits
答案
C
解析
本题为推断题。回答依据为第3段第2、3句话,尤其是第2句话。B、D两项都容易被排除,A项迷惑性较大。原文意思是:在短期内看不到经济效益,冷战结束,太空探索中日益强调国际合作的今天,显然促使人类踏上火星的原因不是利润和民族主义。
转载请注明原文地址:https://jikaoti.com/ti/jupjFFFM
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
诉讼时效期间届满,权利人丧失的权利是()。
Somepsychologistsmaintainthatthinkingis______.Fewpeopleareabletolistentofamiliarmusicwithout______.
Martin:CanyoucoverformeonSunday?I’msupposedtoteachthehighschoolclass.Lisa:Sure.____?Martin:We’regoingtoth
HelpWantedAdOutstandingopportunitywithlocalrealestatecorporation.Requiresstrongbackgroundinrealestate,financ
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
Besidesactiveforeignenterprisesanda【31】numberofprivateemployers,aconsequentialnewdevelopmentwasthedevelopmentof
Thisbook______metwentydollars.
Tom:Youareplayingguitarwell.Canyoureadmusic?Charles:No,Idon’t.Ijustlistentosongsontheradioandthenplayth
Beijingiswell______itsbeautifulsceneryandtheGreatWall.
随机试题
咨询医师应向咨询者提供的咨询内容不包括
晶闸管触发电路所产生的触发脉冲信号必须要()。
西蒙认为,整个行政管理过程的核心是()
引起老年心力衰竭患者症状加重的最常见的诱因是
一天晚上,田某从同学家归来,路过一条偏僻的胡同时,从胡同口处跳出一个持刀青年黄某。黄某持刀逼向田某并让他交出钱和手机。田某见状扭头就跑,结果跑进了死胡同,而黄某持刀紧随其后。慌乱害怕中,田某拿起墙角的一根木棒,向黄某挥去,黄某应声倒下。田某立即向派出所报案
关于城市生态系统所具有人工化的营养结构的含义叙述正确的是()。
混凝土使用的拌制水的pH值(酸碱度)应不小于( )。
下列各项中,表明已售商品所有权的主要风险和报酬尚未转移给购货方的有()。
Duetoherexcellentperformanceinthisproject,MissLinwas______totheSalesDirector.
在Access中已建立了“学生”表,表中有“学号”、“姓名”、“性别”和“入学成绩”等字段。执行如下SQL命令:Select性别,avg(入学成绩)From学生Groupby性别其结果是
最新回复
(
0
)