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
51
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://jikaoti.com/ti/7i6sFFFM
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
LoweringtheRiskofHeartDiseaseLikemillionsofotherAmericans,Icomefromafamilywithahistoryofheartdisease.My
From1994to1998thenumberofAmericanswhohaddonatedakidneyreached244.Peoplewithheartdisease,diabetesandhighbl
Peoplearoundtheglobehittheheightoftheirmiseryanddepressionin(51)age,anewinternationalstudysuggests.The
Mothersandmatchmakers(媒人)havealwaysknownthatnotbeingmarriedisadefinitehealthhazard.Butwhenateamofresearchers
Beforetheinventionofphotoengraving,steelandcopperplateengravingservedastheprincipalmeansofreproducingillustratio
TooPoliteforWordsAJapanesecolleaguetheotherdaywastalkingaboutameetingwithamanwhomsheabruptlydescribedu
WarmPeopleLikelytoKeepColdatBayStayingpositivethroughthecoldseasoncouldbeyourbestdefenseagainstgettingi
Inthebeginningofparagraphonewearetoldthatscientistscannotagree______.Whatdoes"some"inthesecondsentenceofp
CarThievesCouldBeStoppedRemotelySpeedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinana
MypianoplayinghasimprovedsignificantlysinceIhadanewteacher.
随机试题
Nocredit,badcredit:hearthetermsoftenenoughandtheycanblurtogether.Thesecreditstatusesaren’toneandthesame,though
康德所说的“一位好名声的人死后继续存在的权利”,指的是
泰嘉贸易公司从国外购进100吨钢材,委托某船运公司运往中国境内。一日,该船运公司一艘夹载着该船船员私自在国外购买的500多件电器等物的船,在中国海口市担杆岛附近海域进行走私交易时,被中国某海关抓获。该海关作出决定,将包括该贸易公司100吨钢材在内的船上所有
某事业单位2012年初准备使用财政性资金修缮一幢办公楼,预算金额为700万元,采用公开招标方式。经确认,此次采购项目已经达到公开招标的标准。该单位委托远大招标公司代理进行公开招标的事宜,已知远大公司是取得的政府采购代理机构资格的中介机构。2012
国内企业甲由外国投资者乙收购51%的股权于1999年10月8日依法变更为中外合资经营企业丙。经审批机关批准后,乙于2000年1月15日支付了购买股权总额50%的款项,于2000年3月20日支付了购买股权总金额20%的款项,于2000年10月5日支付了剩余
教学语言是教师进行化学教学时最常用的工具和手段,下列哪一项不是教学语言应具有的特点?()
如图所示,过正方体ABCD-A1B1C1D1的顶点A作直线l,使l与棱AB,AD,AA1所成的角都相等,这样的直线l可以作()
2015年国家自然科学基金委全年共接收173017项各类申请,同比增长约10%。择优资助各类项目40668项,比上年增加1579项,资助直接费用218.8亿元,平均资助强度(资助直接费用与资助项数的比值)53.8万元,各项工作取得新进展新成效。在研究项目
细胞核呈咖啡豆样外观见于
—Tellmesomethingaboutyouradventurelastyear.—Welostourwayintheforestand______mattersworsewas______itbegantora
最新回复
(
0
)