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、To indicate how climbers communicated. B、To show that climbers enjoyed many comforts. C、To show that modern telephones work at
A、To indicate how climbers communicated. B、To show that climbers enjoyed many comforts. C、To show that modern telephones work at
admin
2009-09-12
76
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. Of course the elevation of Mount Everest was determined many years ago using traditional surveying methods. But these scientists wanted to make a more pre else 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 a mount 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、To indicate how climbers communicated.
B、To show that climbers enjoyed many comforts.
C、To show that modern telephones work at high altitudes.
D、To emphasize how small some equipment had become.
答案
D
解析
Why does the speaker mention a hand-held telephone?
推理题。解答此题的关键是通过和过去的落后进行对比(in the past...much too heavy.But now...have been reduced to...)推导出对现在进步的肯定(emphasize how small)。
转载请注明原文地址:https://kaotiyun.com/show/PJ37777K
0
大学英语四级
相关试题推荐
A、ForeigninvestorsarelosingconfidenceinIndia’seconomy.B、ManymultinationalenterprisesarewithdrawingfromIndia.C、The
RaisingtheMinimumWageReducesPovertyA)Onefunnypartofwatchingjournalistscovertheminimumwagedebateisthatthe
A、Hehasfourchildren.B、Tomistooyoungtostartschool.C、Janeistheeldest.D、Billyhasnotstartedschool.D从男士在原文中的描述中不难
Therecanbefewmoredepressingstoriesintheentirehistoryofman’sexploitationofnaturethanthedestructionoftheunfor
A、Twelve-gradestudents.B、Studentswhosefathersarefarmers.C、Studentslearningagriculture.D、Studentswhohavelearnedmath
A、Trytokeepawayfromcomputerscreens.B、Eatasmuchfruitaspossible.C、Don’tgetfiltersoncomputerscreens.D、Avoiddrin
Fromthefirstparagraphweknowthatpresent-dayuniversitieshavebecome______.Thedramaticdeclineintheenrollmentoffo
Thetitlebelowthatbestexpressestheideasofthispassageis______.Industryisprimarilyinterestedinappliedresearchb
A、Forthesakeofhighgrades.B、Forpassinggivenexaminations.C、Forthegoodofgainingknowledge.D、Forthecompletionofre
A、Itisadvantageoustothebrains.B、Ithelpsstrengthentheheart.C、Itisgoodforimprovingmuscletone.D、Ithelpsdevelop
随机试题
囊性淋巴管瘤的临床表现如下,除外
治疗肺炎喘嗽属痰热闭肺型的首选方是治疗肺炎喘嗽属风热闭肺型的首选方是
化学反应低温自发,高温非自发()。
( )是指管理组织中一个职能部门最合理的能够管理与控制的下二级部门以及部门之间关系的数目。
某高速公路穿越某旅游景区,其中K49+020~K49+530段原设计为填高10~20m的路堤,并需借土填方。建设单位要求施工单位加强环境保护,做到文明施工。因该地区申报4A级旅游景区,为保护该区域环境地貌,决定取消取土场。经相关各方协商,决定将该段路堤变更
个人外汇账户按账户性质区分为()。
先行组织者包括两种类型,分别是说明性组织者和()
国民党政府统治下的中国()
Atpresentgroupsofscientificworkers,often【C1】______bytheirgovernments,spendtheirtimein【C2】______the【C3】______ofear
—Lookatthenotebelow.—Youwillhearaninterview.InterviewInformationTheintervieweraskedi
最新回复
(
0
)