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
专升本
Life on Mars Perhaps more than anything else, scientists are eager to find out if Martian life existed in the past—or still
Life on Mars Perhaps more than anything else, scientists are eager to find out if Martian life existed in the past—or still
admin
2008-01-17
29
问题
Life on Mars
Perhaps more than anything else, scientists are eager to find out if Martian life existed in the past—or still exists.【61】telescopes first zoomed in【62】Mars in the 17th century, people have conjured up a wild【63】of images or what Martians might look like. But space probes like the 1997 Sojourner land rover have yielded no evidence of such alien beings.
Most experts agree that if life did at one time evolve on Mars, finding evidence of that life—which would likely take the form of tiny organisms—won’t be easy.【64】, many scientists are optimistic. "We’ve got organisms on Earth that adapted to life deep【65】the surface in underground water wells, " says Stephen Clifford. "【66】life like that evolved on Mars four billion years ago, there’s no reason why it【67】today. "
【68】last year’s disappointing losses, the future of Martian exploration looks【69】This year, two major
films about fictitious Mars missions—Red Planet and Missions to Mars—are certain to heighten interest in our planetary neighbour. More important, plans for new sets of NASA orbiters and landers—one to launch in 2001 , the other in 2003—are already in the works. Without a doubt, each new mission will inch scientists closer to【70】the mysteries of planet Mars.
选项
A、varying
B、various
C、plenty
D、variety
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/eTLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
FromthepassagewemayknowthatthesituationinRussiain1917was______.Theword“provisional”means______.
Ahobbycanbealmostanythingapersonlikestodoinhissparetime.Hobbyists【B1】______pets,buildmodelshipsanythingap
Ahobbycanbealmostanythingapersonlikestodoinhissparetime.Hobbyists【B1】______pets,buildmodelshipsanythingap
Don’tforget______whenyouarefinishedwiththeelectriciron.
Thefollowingisalistofbusinessterms.Afterreading,youarerequiredtoidentifytheitemsgiveninChineseinthetableb
Malaysiaisacountrythat______inthemanufactureofrubberproducts.
Despiteacoolingoftheeconomy,high-technologycompaniesarestillcryingoutforskilledworkers.TheInformationTechnology
Theyovercameallthedifficultiesandfulfilledtheplantendaysaheadofschedule,______wassomethingwehadnotexpected.
(非英语类学生必做)IarrivedintheUnitedStates【61】February6,1986,butIremembermyfirstdayherevery【62】Myfriendwaswa
IntheuniversityJimwasafast-tracker.Hemadegoodgradeswithlittleeffort,andhisclassmatesthoughtofhim"mostlikely
随机试题
对于牙源性上颌窦炎,拟拍片位是
患者,男,56岁。患糖尿病10年,一直采用饮食控制疗法,空腹血糖持续在10mmol/L以上。近5年来,口服降糖药物格列本脲和阿卡波糖仍未获得良好控制,需采用胰岛素治疗。下列选项中,属于长效胰岛素的是
特发性血小板减少性紫癜(ITP)主要发病机制是
急性肺水肿特征性表现是
基金日常估值由()进行。
下列关于个体工商户生产经营所得的说法,正确的是()。
在指令编码设计过程中,虽然有最优化的编码方法,但人们仍采用
为了清除列表框中指定的项目,应使用的方法是
打开考生文件夹下的演示文稿yswg.pptx,按照下列要求完成对此文稿的修饰并保存。使用“华丽”演示文稿设计模板修饰全文;全部幻灯片切换效果设置为“百叶窗”。
Therewasatimewhen,ifaladygotontoacrowdedbusortrain,agentlemanwould【B1】______standupandofferherhisseat.
最新回复
(
0
)