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
80
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
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
ThemainreadersofmedicaljournalsareHowmanymajortypesofarticlesarementionedinthepassage?
HitchhikingWhenIwasinmyteens(十几岁)and20s,hitchhikingwasamainformoflong-distancetransport.Thekindnessorcu
TooPoliteforWordsAJapanesecolleaguetheotherdaywastalkingaboutameetingwithamanwhomsheabruptlydescribedu
A.CausesofChangesB.IncreasingNumberofMuseumsandVisitorsC.MuseumsGettingClosertoMoreSpectatorsD.Mo
Theyaretryingtoidentifywhatiswrongwiththepresentsystem.
CanLoudMusicCauseHearingImpairment(损伤)?Haveyouevergonetoaconcertandrealizedthatyourseatswererightnextto
Writingisaskillthatrequiresconsistentpractice.
随机试题
下列术语中,属于显示器性能指标的是()。
Sorry,Ididn’tknow______Dr.Smithhasalreadyreturnedfromhisholiday.I’11goandseehiminaminute.
卫生主管部门对医院护理人员编制的要求是护理人员:床位为
某公路隧道穿越两条断层地带,围岩级别为Ⅱ~Ⅲ级,地下水不发育。试根据上述问题,回答下列问题。若采用瞬变电磁法进行超前地质预报,下列数据解释正确的是()。
逻辑电路如图所示,时钟脉冲来到后触发器()。
背景材料:某公路工程于2013年6月签订合同并开始施工,合同工期为30个月。2014年1月开始桥梁上部结构施工。承包人按合同工期要求编制了桥梁上部结构混凝土工程施工进度时标网络计划(如下图所示),该部分各项工作均按最早时间安排,且等速施工,监理工
企业2008年收入总额( )万元。企业2008年度应纳税所得额( )万元。
如果一个人有洁癖,他只要接触了公交车扶手,就一定要洗手或者消毒。如果上述命题为真,下列推理可能为真的是?Ⅰ,小王有洁癖,如果他接触了公交车扶手,那么并非一定要洗手或者消毒。Ⅱ,小李没有洁癖,他如果接触了公交车扶手,也不一定要洗手或者消毒。Ⅲ,小爱有
InJanuary1995,GeorgeWBushwas______asthenewgovernorofTexas.
MartinLutherKingJr.campaignedforthe______ofcivilrightstoblackpeople.
最新回复
(
0
)