首页
登录
职称英语
[originaltext] People in most countries depend on communications technology
[originaltext] People in most countries depend on communications technology
游客
2023-07-29
79
管理
问题
People in most countries depend on communications technology more than ever before. One day in May, an accident forced millions of Americans to be silent. They had to live and work without the technology they depend on every day.
A telecommunication satellite experienced computer failure. The satellite, known as Galaxy Four, moved from its correct orbit and was unable to receive signals from Earth. A backup computer failed to turn on, and the satellite began to spin out of control.
Galaxy Four was launched in 1993. It cost two hundred fifty million dollars. Galaxy Four provided the major link for millions of pagers, credit card operations, company communications systems, and home satellite equipment. The satellite also was used to send television and radio broadcasts.
The telecommunication satellite failure created big problems for many companies. At least eight of the nation’s ten biggest paging companies depend on Galaxy Four. A pager is an electronic device that receives telephone messages. The pager makes a beeping sound when it receives one. Ninety percent of the nation’s forty-five million pagers lost service when Galaxy Four failed. Paging companies were unable to provide services to police department, doctors and other individuals.
The satellite failure affected many television and radio broadcasts. Thousands of computer users were unable to use the Internet.
A nearby satellite called Galaxy Six has replaced the Galaxy Four satellite. Signals for broadcasting companies are being sent through Galaxy Six. Another satellite, Galaxy Three-R, is replacing Galaxy Four for paging and other signals. Technical experts had to move each person’s satellite equipment to point to Galaxy Three-R. Each move takes about thirty minutes. Technicians say the moves must be exact to within less than a centimeter. They were able to restore service to most customers within a few days.
选项
A、Paging companies.
B、Television and radio broadcasts.
C、Computer users.
D、Household equipment.
答案
A
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/2879286.html
相关试题推荐
[originaltext]TodayIwouldliketotalkabouttheearlydaysofmoviemaki
[originaltext]W:Hi,Sid.Ilovedyourconcertlastnight!Howereyou?M:I’m
[originaltext]W:Hi,Sid.Ilovedyourconcertlastnight!Howereyou?M:I’m
[originaltext]M:HeyJane,whereareyougoingthisweekend?W:Hi,Bob.I’mgo
[originaltext]Hello,I’llbeyourtourguidetodayhereattheartmuseums
[originaltext]Hello,I’llbeyourtourguidetodayhereattheartmuseums
[originaltext]W:I’mgladthattoday’sphysicsclassisover.Whatdidyouthin
[originaltext]W:I’mgladthattoday’sphysicsclassisover.Whatdidyouthin
[originaltext]W:I’mgladthattoday’sphysicsclassisover.Whatdidyouthin
[originaltext]W:I’mgladthattoday’sphysicsclassisover.Whatdidyouthin
随机试题
Itmaysomedaybeworthwhiletotrytorecoveruraniumfromseawater,butatpre
Whatistheconversationmainlyabout?[br][originaltext]W:Doyoulikesports
Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrel
"LayersofSocialClass"Takentogether,income,occupa
Ifaneedleisthrown______onasheetofpaperruledwithlines,howoftencan
身体活动的基本要素是指()。A.频率 B.强度 C.时间 D.类型 E.
根据美国心理学家维纳的成败归因理论,下列属于稳定的且不可控的因素有()。A.
下列动物药中,可以治疗梅毒的是A.斑蝥 B.蕲蛇 C.乌梢蛇 D.蝉蜕
手少阳三焦经的输穴是( )。A.中渚 B.外关 C.支沟 D.间使
(2018年真题)与外墙内保温相比,外墙外保温的优点在于()。A.有良好的
最新回复
(
0
)