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
73
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
Howmuchshouldthemanpay?
Howmuchshouldthemanpay?
•Readtheapplicationletterbelow.•Aresentences16-22ontheoppositepage’Right’or’Wrong’?Ifthereisnotenoughinform
ForestryuniversitystudentsbycitizenshipWhichcountryhasthefeweststudentsatforestryUniversity?
Questions11-15•Lookatthechartsbelow.Theyshowtheincomefromsalesandtheincomefromadvertisementsineightdifferen
Readthearticlebelowaboutaservicewhichhelpscompaniesindifficulties.Foreachquestion(23-28)ontheoppositepage,cho
Computersmayonedayturnnightintoday—withgoodold,naturalsunlight.Giantcomputer-controlledmirrors,thousandsoff
Wehavetheauthoritytocalltheclubbeforeusandtomakethemaccountforthemannerinwhichtheirplayingaffairsarebein
(Viewingbiologically),modem(footballers)are(revealed)bythemassmediaasmembersofadisguised(huntingpack).
ItwassoincredibletoherthatIshouldhavemadethehighestscoreintheclass______shewastryingtotestmeagain,perso
随机试题
过多的,过度的;极端的adj.e________
治疗胆道蛔虫症的经验穴是
了解子宫内膜周期性变化最可靠的方法是:
A.芳香化浊,降逆和胃B.益气健脾,和胃降逆C.益气生津,降逆止吐D.暖脾温肾,降逆和胃E.温中健脾,和胃降逆
A.硝苯地平B.亚硝酸异戊酯C.硝酸甘油D.普萘洛尔E.尼可地尔
依照《中华人民共和国广告法》,不得做广告的药品是
下列用地中,可以采取协议方式出让国有建设用地使用权的是()。[2009、2007年考试真题]
()是求取建筑物折旧最详细、最复杂的一种方法。
《给水排水管道工程施工及验收规范》规定,水压试验前,除接口外,管道两侧及管顶以上回填高度不应小于()m。
TheChinesegovernmenttakesthefollowingmeasurestoensurethefoodsecurityEXCEPT
最新回复
(
0
)