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
外语
A Record-Breaking Rover NASA’s Mars rover Opportunity has boldly gone where no rover has gone before—at least in terms of di
A Record-Breaking Rover NASA’s Mars rover Opportunity has boldly gone where no rover has gone before—at least in terms of di
admin
2015-08-05
43
问题
A Record-Breaking Rover
NASA’s Mars rover Opportunity has boldly gone where no rover has gone before—at least in terms of distance. Since arriving on the Red Planet in 2004, Opportunity has traveled 25.01 miles, more than any other wheeled vehicle has on another world.
"This is so remarkable considering Opportunity was intended to drive about 1 kilometer and was never designed for distance, " says John Callas, the Mars Exploration Rover Project Manager.
He works at NASA’s Jet Propulsion Laboratory in Pasadena, California. " But what is really importandy is not how many miles the rover has racked up, but how much exploration and discovery we have accomplished over that distance. "
The solar-powered Opportunity and its twin rover, Spirit, landed on Mars 10 years ago on a mission expected to last 3 months. The objective of the rovers was to help scientists learn more a-bout the planet and to search for signs of life, such as the possible presence of water.
Spirit stopped communicating with Earth in March 2010, a few months after it got stuck in a sand pit. But Opportunity has continued to collect and analyze Martian soil and rocks.
During its mission, Opportunity has captured, and sent back to Earth, some 187, 000 panoramic and microscopic images of Mars with its cameras. It has also provided scientists with data on the planet’s atmosphere, soil, rocks, and terrain.
The rover doesn’t seem to be ready to stop just yet. If Opportunity can continue on, it will reach another major investigation site when its odometer hits 26. 2 miles. Opportunity has been working on Mars since January 2004.
Researchers believe that clay minerals exposed near Marathon Valley could hold clues to Mars’s ancient environment. Opportunity’s continuing travels will also help researchers as they plan for an eventual human mission to the Red Planet.
Which of the following statements is true of Opportunity?
选项
A、It will come back to earth soon.
B、Another rover will be sent to replace it.
C、It is travelling to another major investigation site.
D、It will work with other rovers exploring Mars.
答案
C
解析
根据文章最后两段可知,如果“机遇号”继续行驶的话,在它行驶到26.2英里的时候,它就会到达另一个重要的研究场地——马拉松谷,因此C项正确。倒数第二段第一句说,“机遇号”不会止步于此,故A项错误。B、D项文中并未提到。
转载请注明原文地址:https://kaotiyun.com/show/ZDQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
ASpecialClockEverylivingthinghaswhatscientistscallabiologicalclockthatcontrolsbehavior.Thebiologicalclock(5
WinstonChurchillgaveamovingspeech.
Peoplearoundtheglobehittheheightoftheirmiseryanddepressionin(51)age,anewinternationalstudysuggests.The
Peoplearoundtheglobehittheheightoftheirmiseryanddepressionin(51)age,anewinternationalstudysuggests.The
Betweennow(June)andLaborDay,millionsofAmericanwillofferuptheirbodiestothesun’srays.Atanindicateshealthandb
FoodSafetyandFoodborneIllnessesFoodsafetyisanincreasinglyimportantpublichealthissue.Governmentsalloverthew
FlyingintoHistoryWhenyouturnonthetelevisionorreadamagazine,celebrities(名人)areeverywhere.Althoughfameandt
Donotunderestimate(低估)thepowerofrevisioninthedaysandhoursbeforeandexamination.Thecloseryouaretotheexam,the
Hewasacquittedonchargesofassaultwithadeadlyweapon.
ImproveComputer-researchSkillsLikemanycollegestudents,JoseJuarezcarriesaroundapocket-sizedcomputerthatletshi
随机试题
男,30岁。全身高度水肿4周。查:血浆清蛋白22g/L,尿量800m/d,尿蛋白5g/d,尿红细胞(++)。患者出现高度水肿的最主要原因是
Windows的设备管理功能部分支持即用功能,下面四条后续说明中有错误的一条是()。[2010年真题]
《会计法》中所指的会计主管人员与()同义。
关于签订理财规划服务合同,说法错误的是()。
“山东三大秧歌”指的是()。
美国东北部大城市带(亦称波士华城市带)是世界上形成最早、发育最为成熟的大城市带。下图为“1970--2008年波士华城市带五个大城市中心城区人口增长率变化和城市带人口增长率曲线示意图”。完成下列问题。影响Ⅳ一V阶段波士华城市带各大城市中心城区人口变化
从刚刚工作、当中学教师时开始,廖俊波就是个“工作狂”,经常加班,为什么他能对工作保持如此高的热情?奥秘就在他常说的“工作是快乐的”。把工作当乐趣,才会有内生动力,自发地在工作上投入百分百的精力,兢兢业业,勤勤恳恳地把工作做好。这段文字接下来最可能
高梁、玉米等植物的种子经发酵、蒸馏就可以得到一种“绿色能源”物质。这种物质是
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
在Word软件中按照要求制作如图示“请柬”,用Word的保存功能直接存盘。【要求】1.录入试题中的文字,并将“请柬”设置为楷体、三号、加粗,其他文字内容设置为宋体、五号、加粗。2.任意插入一幅图片,并用适当方法对插入的图片进行大小与
最新回复
(
0
)