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
2012-02-02
88
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 Apollo astronauts rocketed to the moon in a dramatic show of 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. (362 words)
By saying "With Mars the scientific stakes are arguably higher than they have ever been" (Line 1, Para. 4), the author means that______.
选项
A、with Mars the risks involved are much greater than any previous space ventures
B、in the case of Mars, the rewards of scientific exploration can be very high
C、in the case of Mars, much more research funds are needed than ever before
D、with Mars, scientists argue, the fundamental interests of science are at issue
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/u3na777K
本试题收录于:
艺术硕士(艺术基础)题库专业硕士分类
0
艺术硕士(艺术基础)
专业硕士
相关试题推荐
Inpreviousgeneration,youngpeoplewereundertheirparents’control;nowtheteenagechildrenoftheWest’srichestgeneration
Thedeclineinmoralstandards—whichhaslongconcernedsocialanalysts—hasatlastcapturedtheattentionofaverageAmericans.
Mostepisodesofabsent-mindedness—forgettingwhereyouleftsomethingorwonderingwhyyoujustenteredaroom—arecausedbya
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhe
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Britishuniversities,groaningundertheburdenofahugeincreaseinstudentnumbers,arewarningthatthetraditionofafree
Forcenturies,explorershaveriskedtheirlivesventuringintotheunknownforreasonsthatweretovaryingdegreeseconomican
随机试题
男性患者,24岁,入院前2小时该患者工作的泵房爆炸,泵内苯酚弥散于空气中,同时该患者因爆炸气流作用头部受撞击,该患者立即脱离现场,患者觉头晕、头痛伴恶心,无呕吐。查体:生命体征平稳,未见阳性体征。实验室检查血、尿常规,肝功、肾功、心肌酶、血糖,离子均未见异
糖尿病肾病的肾损害在临床上可分期为
利福平的不良反应乙胺丁醇的不良反应
完带汤的适应证是萆薢分清饮的适应证是
女患儿,5岁,症见形体明显消瘦,肚腹膨胀,面色萎黄无华,毛发稀疏,面黄,精神不振,易烦躁激动,睡眠不宁,咬指磨牙,食欲减退。此患儿的治法是
监理工程师需要( )的复合型人才来承担。
以下各项中不属于营业收入增长率作用的是()。
下列情况中,注册会计师应对2013年度财务报表出具带强调事项段的无保留意见审计报告的是()。
企业计提的应由本期负担的利息费用应计入()。
()的诗作奠定了我国田园诗的基石,被世人称为田园诗人。
最新回复
(
0
)