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
The score is tied in the second half of the World Cup finals, and aboard a 747, passengers cheer as they watch the game on their
The score is tied in the second half of the World Cup finals, and aboard a 747, passengers cheer as they watch the game on their
admin
2011-01-26
76
问题
The score is tied in the second half of the World Cup finals, and aboard a 747, passengers cheer as they watch the game on their laptops-40,000 feet above Earth. Sound futuristic?
Boeing Plans to make this scenario possible with its broadband telecommunications initiative, Connexion by Boeing. This service will allow fliers to surf the Web, send and receive email, access the company internet, book dinner reservations trade the honest stock, shop-online and watch live TV from any seat in an aircraft.
Connexion is already available on private jets, and Boeing says that the two-way broadband service will be installed on domestic flights in late 2001. Global coverage is slated to arrive by 2005. Subscribers will be able to access Connexion from their seats using laptops or personal digital assistants, plus a network card and a cable provided by the airline. The cost? Comparable to ground-floor cellular phone service; between $ 6 and $ 25 an hour.
One key enabler for this technology is a phased-array antenna, originally developed by Boeing in 1986. Located on the aircraft’s upper fuselage, the antenna electronically transmits beams to a satellite at 1.5 Mb per second and receives them at 5 Mb per second. Thus, every passenger can access Connexion concurrently, securing connection speeds of no less than 56 Kb per second each. The actual bandwidth will be continually upgraded.
Boeing ultimately wants to bring the service to markets like cruise ships and oil exploration plat- forms. Until then, the sky’ s the limit.
According to the article, what does the word "concurrently"(Para. 4) mean?
选项
A、At the same time.
B、One at a time.
C、In order.
D、Not currently.
答案
A
解析
concurrently同时发生地。选项A正确。
转载请注明原文地址:https://kaotiyun.com/show/6bBO777K
0
考博英语
相关试题推荐
Youwillheartwotelephoneconversations.Writedownonewordornumberinthespacesontheformsbelow.Message1Questions1
Lookatthenotesbelow.Someinformationismissing.YouwillhearamangivingapresentationaboutArlingtonPark,atraining
Youwillhearalongdialogueonstafftrainingandrecruitingextrastaff.Foreachquestion(23-30),markoneletter(A,BorC)
Thecustomercan’thavearefundbecause
PRESSOFFICER£22,000PERYEARAleadingoilcompanyneedsaPressOfficerforitsbusyoffices.Youshouldbe:-goodat
Computersmayonedayturnnightintoday—withgoodold,naturalsunlight.Giantcomputer-controlledmirrors,thousandsoff
FurthereducationisofficiallyAdescribedasthepost-secondarystageofeducation,Bcomprisedallvocationalandconvocational
AmericaLosesaGreatPublicThinkerArthurMiller’sdeathlastweekmeantmorethanthelossofanoutstandingplaywright.
AmericaLosesaGreatPublicThinkerArthurMiller’sdeathlastweekmeantmorethanthelossofanoutstandingplaywright.
Thepricesofallthesharesfellsharplyjustafterafew______whenthenewscamethatthewarhadbrokenout.
随机试题
为保证神经冲动传递的灵敏性,递质释放后()
胎儿娩出后,用来消毒脐带断面的高锰酸钾浓度是
关于辩论原则的表述,下列哪些选项是正确的?(2009年卷三第82题)
下列评价指标中不属于盈利能力分析的是()。
从投资类型上看,购置设备属于()。
伴随着国内房地产和基建市场规模的逐步扩大,以SBS/APP改性沥青卷材为主导的新型建筑防水材料市场在未来仍有较大的增长空间。但由于该行业技术和资金壁垒低,使得行业集中度很低,前10家企业销售占比不到10%。激烈的市场竞争也造成企业难以进一步提升毛利率,业绩
问题解决时没有固定的答案,是通过发展新方法形成新思路和步骤的方法是()
教师的专业知识素养包括()。
下列不能列入国民收入核算的是()。
Thegreatchariotofsociety,whichforsolonghadrundownthegentleslopeoftradition,nowfounditselfpoweredbyaninterna
最新回复
(
0
)