信号流图 (signal flow diagram)
信号流图 (signal flow diagram)
相关考题：
在使用UML建模时，若需要描述跨越多个用例的单个对象的行为，使用______是最为合适的。A．协作图(Collaboration diagram)B．序列图(Sequence Diagram)C．活动图(Activity Diagram)D．状态图(Statechart Diagram)
Perform. Quality Control is the process of monitoring and recording resuks of executing the Quality Plan activities to assess performance and recommend necessary changes．（ ）are the techniques and tools in performing quality control． ①Activity network diagram②Cause and effect diagrams③Inspection④Flow chart⑤Work Breakdown Structure⑥Pareto chart A．①③⑤ B．②④⑤⑥ C．②③④⑤⑥ D．①②③④⑥
N-S diagram can used to substitute conventional program flow Chart．In the following phrases，Which does not belong to the basic control structures that contain?A．sequence structureB．condition StructureC．selection structureD．execution structure
____，the bus started at once.A、The signal was givenB、The signal givingC、The signal givenD、When the signal given
() , the train started. A、Giving the signalB、The signal being givenC、The signal givenD、The signal giving
在使用UML建模时，若需要描述跨多个用例的单个对象的行为，使用______是最为合适的。A．协作图(collaboration Diagram)B．序列图(Sequence Diagram)C．活动图(Activity Diagram)D．状态图(Statechart Diagram)
数据流程图（Data Flow Diagram， DFD/Data Flow Chart）是描述系统数据流程的工具。它将数据独立抽象出来，通过图形方式描述信息的来龙去脉和实际流程。在数据流程图中用（）表示处理过程。A.长方形B.带圆角的长方形C.正方形D.圆或椭圆
（ ）is used to model aggregates of information and the relationships these aggregates have to other.A.Data flow diagram B.Entity relationship diagram C.Sequence diagram D.Structure diagram
A time diagram is a diagram on the plane of the ______.A.celestial meridianB.celestial equatorC.celestial horizonD.principal vertical circle
数据流程图（Data Flow Diagram，DFD/Data Flow Chart）是描述系统数据流程的工具。它将数据独立抽象出来，通过图形方式描述信息的来龙去脉和实际流程。在数据流程图中用（ ）表示外部实体。A.长方形B.带圆角的长方形C.正方形D.圆或椭圆
（ ）不属于DFD（Data Flow Diagram，数据流图）的要素。如果使用DFD对某企业的财务系统进行建模，那么该系统中（请作答此空）可以被认定为外部实体。A.转账单B.转账单输入C.接收转账单的银行D.财务系统源代码程序
（请作答此空）不属于DFD（Data Flow Diagram，数据流图）的要素。如果使用DFD对某企业的财务系统进行建模，那么该系统中（ ）可以被认定为外部实体。A.加工B.联系C.数据流D.数据存储
The Unified Modeling Language is a standard graphical language for modeling object-oriented software. （ ） can show the behavior of systems in terms of how objects interact with each other. A.Class diagram B.Component diagram C.Sequence diagram D.Use case diagram
（ ） is used to model aggregates of information and the relationships these aggregates have to other. A.DatA.flow diagram B. Entity relationship diagram C.Sequence diagram D.Structure diagram
识别信号、询问信号和回答信号英文词汇分别为（）。A、identit ysignal、reply signal、interrogation signalB、interrogation signal、identity signal、reply signalC、identity signal、interrogation signal、reply signalD、reply signal、identity signal、interrogation signal
Which of the following is the correct signal flow for an analog multi-room audio system？（）A、Source，Volume Control，Speaker，AmpB、Source，Amp，Volume Control，SpeakerC、Amp，Source，Volume Control，SpeakerD、Speaker，Amp，Volume Control，Source
单选题A time diagram is a diagram on the plane of the（）.Acelestial meridianBcelestial equatorCcelestial horizonDprincipal vertical circle
单选题Which signal is recognized as a distress signal?（）.ADirecting the beam of a searchlight at another vesselBA smoke signal giving off orange colored smokeCA whistle signal of one prolonged and three short blastsDInternational Code Signal PAN spoken over the radiotelephone
单选题关于Stick Diagram，下列说法正确的是（）AStick Diagram包括了所有版图的信息。BStick Diagram的信息是不完整的，因此它对于版图没有任何帮助。CStick Diagram是版图的抽象表示，它可以帮助高效的画出版图。DStick Diagram没有层次的概念。
单选题A time diagram is a diagram of the celestial sphere as observed from above the（）.Asouth celestial poleBnorth celestial poleCobserver's meridianDGreenwich meridian