UMTS是（）的缩写，即通用移动通信系统。A、Universal Mobile Telecommunications SystemB、UTRAN Mobile Telecommunications SystemC、Europe Mobile Telecommunications SystemD、Universal Mobile TeleSystem
UMTS是（）的缩写，即通用移动通信系统。
- A、Universal Mobile Telecommunications System
- B、UTRAN Mobile Telecommunications System
- C、Europe Mobile Telecommunications System
- D、Universal Mobile TeleSystem
相关考题：
以下哪些是CDMA2000系统中可能由移动台引发“掉话”的因素() A.Mobile Ack FailureB.Mobile Bad FramesC.Mobile Fade TimerD.BS Ack Failure
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.On the safety issue of mobile phones,the manufacturing companies_________.A:deny the existence of mobile phone radiationB:develop new technology to reduce mobile phone radiationC:try to prove that mobile phones are not harmful to healthD:hold that the amount of radiation is too small to worry about
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of writing this article is to advise people_________.A:to buy mobile phonesB:to use mobile phones less oftenC:to update regular phones D:to stop using mobile phones
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The salesman retired young because_________.A:he disliked using mobile phonesB:he was tired of talking on his mobile phoneC:his employer's doctor persuaded him toD:he couldn't remember simple tasks
共用题干第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The word"detected"in Paragraph 3 could be best replaced by_________.A:curedB:removedC:discoveredD:caused
GSM是以下哪个的简称（）A、Global System for Mobile communicationsB、Global Standard for Mobile cellularC、General Standard for Mobile cellularD、General System for Mobile communications
IMS的全称是（）。A、Integrated Mobile SolutionB、IP Multimedia SybsystemC、Intelligent Mobile SystemD、Interesting Multiple Service
中国移动英文全称的表述是？（）A、China Mobile Communication CorporationB、China Mobile Corporation CommunicationC、China Mobile Cellular CorporationD、China Mobile Corporation Cellular
第三代移动通信系统也简称（），又被国际电联（International Telecommunication Union，ITU）称为IMT-2000（International Mobile Telecommunications in the year 2000），意指在2000年左右开始商用并工作在2000MHz频段上的国际移动通信系统。A、B3GB、2.75GC、2GD、3G
LTERRC连接建立原因有哪些A、MO (Mobile Originating) – signalingB、MO – data；C、MT (Mobile Terminating) – access；D、Emergency；E、highPriorityAccess；
LTERRC连接建立原因有哪些（）A、MO（Mobile Originatin–signaling)B、MO–dataC、MT（Mobile Terminatin–access)D、EmergencyE、highPriorityAccess
以下哪些是CDMA2000系统中可能由移动台引发“掉话”的因素（）A、Mobile Ack FailureB、Mobile Bad FramesC、Mobile Fade TimerD、BS Ack Failure
问答题Topic 2：My View on College Students’ Use of Mobile Phones Questions for reference: 1) What is the phenomenon of college students’ using mobile phones? 2) What might be the advantages and disadvantages of their using mobile phones? 3) What could be done to this problem?
单选题What is the speaker’s main topic?AEffects of using mobile phones on healthy human cells.BRisks of developing cancer involved in the use of mobile phones.CDamage to healthy cells caused by the use of mobile phones.DThe potential health hazards of mobile phones on humans.
多选题LTERRC连接建立原因有哪些（）AMO（Mobile Originatin–signaling)BMO–dataCMT（Mobile Terminatin–access)DEmergencyEhighPriorityAccess
单选题A mobile earth station in the maritime mobile-satellite service,which is located on board ship,is called（）.Aan LESBan SESCa ship stationDa Land Mobile Station
单选题Have you ever known the mobile phone has a ______ history? It is said that the world’s first mobile phone was made in the 1970s.AlongBfreshCcolorfulDshort