TD-LTE（Time Division Duplexing，TDD）采用的是（）A、频分双工B、时分双工C、码间干扰D、多址干扰
TD-LTE（Time Division Duplexing，TDD）采用的是（）
- A、频分双工
- B、时分双工
- C、码间干扰
- D、多址干扰
相关考题：
TDD表示的含义( )。 A. transfer control protocolB. time division duplexC. time division synchronous CDMAD. time division multiple access
Which of the following could serve as an appropriate title for the passage ?A．The Theory of Division of LaborB．Adam Smith as the Discoverer of Division of LaborC．Adam Smith, the English EconomistD．Division of Labor, an Efficient Way of Organizing Work
在通信专业中，TDM的英文全称是（），基带英文通常翻译为（）。A．Time Delay Method B．Transmission Delay Method C．Time Division Multiplexing D．Time Dividing MultiplexingA．sideband B．baseband C．dual band D．single band
在LTE系统中，为了支持成对的和不成对的频谱，支持频分双工(Frequency Division Duplex，FDD)模式和时分双工(Time Division Duplex，TDD)模式。LTE支持两种类型的无线帧结构：类型1，适应于全双工和半双工的FDD模式，类型2适应于TDD模式。()
为使下列程序的正确输出结果为： Now is 2004-7-6 12:12:12 那么应该在程序划线处填入的语句是( )。 #include ＜iostream＞ using namespace std; class TIME; class DATE { public: DATE(int y=2004,int m=1,int d=1) { year=y; month=m; day=d; } void DateTime(TIME t); private: int year,month, day; }; class TIME { public: TIME(int h=0,int m=0,int s=0) { hour=h; minute=m; second=s; } ______________; //将类 DATE 中成员函数 DateTime 声明为类 TIME 的友元函数 private: int hour,minute, second; }; void DATE: :DateTime(TIME t) { cout＜＜"Now is "＜＜year＜＜'-'＜＜month＜＜'-'＜＜day＜＜ ' '＜＜t.hour＜＜":"＜＜t.minute＜＜': '＜＜t.seoond＜＜'.'＜＜end1; } int main ( ) { DATE d(2004,7,6); TIME t (12, 12, 12); d. DateTime (t); return 0; }A．friend void DateTime(TIME t);B．friend void DATE::DateTime(TIME 0;C．void DateTime(TIME t);D．friend void DateTime(TIME t);
为了使程序的输出的正确结果为： Now is 2004．7.10 10：10：10． 那么应在下列程序划线处填入的正确语句是( )。 那么应在下列程序划线处填入的正确语句是( )。 #include ＜iostream＞ using namespace std; class TIME; class DATE { public: DATE(int y=2004,int m=1,int d=1) { year=y; month=m; day=d; } friend void DateTime(DATE d, TIME t); private: int year, month, day; }; class TIME { public: TIME(iht h=0, int m=0,int s=0) { hour=h; minute=m; second=s; } friend void DateTime(DATE d,TIME t); private: int hour,minute, second; }; ______________________ //函数 DateTime 的首部 { cout＜＜"Now is"＜＜d.year＜＜'.'＜＜d.month＜＜'.'＜＜d.day＜＜ ' '＜＜t.hour＜＜":"＜＜t.minute＜＜':'＜＜t.second＜＜'.'＜＜end1; } int main ( ) { DATE d(2004,7,10); TIME t(10, 10, 10); DateTime(d,t); return 0; }A．void DateTime(DATE d,TIME t)B．void TIME::DateTime(DATE d,TIME t) constC．friend void DateTime(DATE d,TIME t)D．void DATE::DateTime(DATE d,TIME t)
A manufacturing company, Man Co, has two divisions: Division L and Division M. Both divisions make a single standardised product. Division L makes component L, which is supplied to both Division M and external customers.Division M makes product M using one unit of component L and other materials. It then sells the completedproduct M to external customers. To date, Division M has always bought component L from Division L.The following information is available:Division L charges the same price for component L to both Division M and external customers. However, it does not incur the selling and distribution costs when transferring internally.Division M has just been approached by a new supplier who has offered to supply it with component L for $37 per unit. Prior to this offer, the cheapest price which Division M could have bought component L for from outside the group was $42 per unit.It is head office policy to let the divisions operate autonomously without interference at all.Required:(a) Calculate the incremental profit/(loss) per component for the group if Division M accepts the new supplier’soffer and recommend how many components Division L should sell to Division M if group profits are to bemaximised. (3 marks)(b) Using the quantities calculated in (a) and the current transfer price, calculate the total annual profits of each division and the group as a whole. (6 marks)(c) Discuss the problems which will arise if the transfer price remains unchanged and advise the divisions on a suitable alternative transfer price for component L. (6 marks)
Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) .It is a ( ) information transfer mode.A.connection orientedB.connectionlessC.high bandwidth utilizationD.poor real-time
Circuit-switching technology is used in Public Switched Telephone Network（PSTN）, Global System for Mobile Communications（GSM） and Code Division Multiple Access（CDMA）. It is a （ ） information transfer mode.A.Connection orientedB.connectionlessC.High bandwidth utilizationD.Poor-real-time
What did the sentence“The other countries had respected this division so long as they remained Catholic”imply？( ) A.It implied this division could not be respected long. B.It implied this division would not face a challenge. C.It implied this division would be respected forever. D.It implied the power of the Pope would never decline.
根据《2GHzTD-SCDMA数字蜂窝移动通信网工程验收暂行规定》，TD-SCDMA（Time Division-Synchronous CDMA）意思是（）。A、宽带码分多址接入B、码分多址接入C、时分多址接入D、时分同步码分多址接入
Which two statements are true about optical networks?（）A、SONET and SDH both use time-division multiplexing.B、An optical transport network system uses time-division multiplexing.C、SONET and SDH both use wavelength-division multiplexing.D、An optical transport network system uses wavelength-division multiplexing.
FDM的英文是（）A、Overload Frequency Division Multiplexing B、Orthogonal Frequency Division Multiplexing C、Overwhelming Frequency Division Multiplexing D、Outstanding Frequency Division Multiplexing
OFDM的英文全称是（）A、Orthogonal Frequency Division MultiplexingB、Outstanding Frequency Division MultiplexingC、Overwhelming Frequency Division MultiplexingD、Orthogonal Frequency Division Modulation
WDM与（）本质是相同的。A、OFDM(optical frequency division multiplexing)B、OTDM(optical time division multiplexing)C、CDM(code division multiplexing)D、EDFA(erbium doped fiber amplifier)
WDM全称为（）。A、wavelength division multiplexingB、waveguide division multiplexingC、wavelength dimension multiplexingD、waveguide division mode
单选题Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.Aconnection orientedBconnectionlessChigh bandwidth utilizationDpoor real-time
单选题In context, which of the following revisions of the underlined portion of sentence 12(reproduced below) is most effective at making it clearer and more specific?Unfortunately, many students today don’t have time for that.Atoday have hardly even 1 hour for such thingsBtoday, unlike those in Archimedes’ time, don’t have time to go to the moviesCtoday don’t have time for such excursionsDof modern times lack sufficient time for the kinds of things explained aboveEtoday lack sufficient time for things like this
单选题TDD表示的含义（）。Atransfer control protocolBtime division duplexCtime division synchronous CDMADtime division multiple access
单选题Why can’t we use time carelessly?ABecause time is too expensiveBBecause time will get backCBecause we are too poorDBecause time never returns
多选题Which two statements are true about optical networks?（）ASONET and SDH both use time-division multiplexing.BAn optical transport network system uses time-division multiplexing.CSONET and SDH both use wavelength-division multiplexing.DAn optical transport network system uses wavelength-division multiplexing.
名词解释题Time division multiplexing时分多路复用