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、Detailed maps from previous studies B、Recent advances in technology. C、Plenty of funding for the study D、Experience carrying h
A、Detailed maps from previous studies B、Recent advances in technology. C、Plenty of funding for the study D、Experience carrying h
admin
2004-12-30
121
问题
Not long ago, some of you may have read about the team of mountain climbing scientists who helped to recalculate the elevation of the highest mountain in the world, Mount Everest(珠穆朗玛峰). Of cause the elevation of Mount Everest was determined many years ago using traditional surveying methods. But these scientists wanted to make a more precise measurement, using a new method that takes advantage of recent advances in technology; it’s called the Global Positioning System. The Global Positioning System uses 24 satellites that circle the earth. Each of the satellites is constantly sending out signals, and each signal contains important information that can be used to determine the longitude, latitude and elevation at any point on the earth’s surface. Well in order to use the system to calculate amount of Everest’s elevation. Scientists need to put a special receiver on the summit to receive signals from the satellites. The problem with this was that in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a hand-held telephone, so climbers were able to take the receiver to the top of the Everest, and from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than us previously thought.
选项
A、Detailed maps from previous studies
B、Recent advances in technology.
C、Plenty of funding for the study
D、Experience carrying heavy loads up mountains
答案
B
解析
According to the talk, what probably contributed most to the success of the new study of Mount Everest?
转载请注明原文地址:https://www.kaotiyun.com/show/O78O777K
0
托福(TOEFL)
相关试题推荐
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReadingPassage1below.AHearingimpairmentorothera
Snow-makersSkiingisbigbusinessnowadays.Butwhatcanskiresortownersdoifthesnowdoesn’tcome?AIntheearlytomid
TacklingHungerinMsekeniATherearenotenoughclassroomsattheMsekeniprimaryschool,sohalfthelessonstakeplaceinth
TheHistoryoftheGuitarTheword’guitar’wasbroughtintoEnglishasanadaptationoftheSpanishword’guitarra,’whichwas,
Choosethecorrectletter,A,B,CorD.Writethecorrectletterinboxesonyouranswersheet.Whatencouragedthewriterto
Gestures—especially______ones.Flashcardscanbedifferentcoloursaccordingtothe______.
【21】Mikathinksthatnon-nativespeakerscanimprove______.
Studentswhosepreviouseducationalexperiencewas______oftenfindithardtobecomeindependentlearners.【39】______
Whendidthewoman’sfriendvisitCroatia?Howmanylocalplacesacceptthecard?
Completethetablebelow.WriteAiftherepairwillbedoneimmediately.Biftherepairwillbedoneduringthefollowingweek
随机试题
初级卵母细胞
男,53岁,肝硬化腹腔积液,近1周有发热,腹胀,稍有呼吸困难,腹腔积液较前有所增长,心率96次/分,应用利尿药治疗2天后出现沉默寡言,性格改变。合适的诊断是
下列有关占有制度的说法正确的有:
工作流程组织是组织论的重要研究内容,其主要包括( )流程组织。
在对投资方案进行经济效益评价时,常用的动态指标有()。
根据增值税法律制度的规定,下列关于增值税的纳税地点,说法正确的有()。
资料(一)甲股份有限公司(以下简称甲公司)成立于1997年,是一家大型服装企业,2000年在上海证券交易所挂牌上市,业务涵盖品牌服装的经营以及高档精纺呢绒、高档西服、职业服的生产和销售。其中,品牌服装的经营包括品牌管理、供应链管理和营销网络管理等
进口对于()相当于()对于商品
根据下面资料回答问题:2005年底,全国城镇房屋建筑面积164.51亿平方米,其中住宅建筑面积107.69亿平方米,占房屋建筑面积的比重为65.46%。东部地区房屋建筑面积83.8亿平方米,中部地区45.22亿平方米,西部地区35.48亿平方米,
将法律责任划分为民事责任、刑事责任、行政责任、国家赔偿责任与违宪责任的标准是()。
最新回复
(
0
)