外来物FOD的全称为（）。A、Foreign Object DebrisB、Fax On DemandC、Freight Oriented DevelopmentD、Foreign Object Damage

（ ）iS a property of object—oriented software by which an abstract operation ma)’be performed in different ways in different classes． A．Method B．Polymorphism C．Inheritance D．Encapsulation

In London, a premium on a foreign exchange rate means ______.

A．the foreign currency is dearer

B．the foreign currency is cheaper

C．the foreign currency is less valuable

D．it has no relevance at all

●Which of the following statements about object oriented database is not correct? (72) ．

(72) A．Each object has a unique object identify in the system

B．Encapsulation and inheritance are two important features of object oriented database

C．A subclass can inherit the attributes and methods of all its superclasses

D．A supereloss includes the attributes and methods at all subclasses

A.Foreign key references cannot cross schema boundaries.

B.A DB2 user must be created before a schema with the same name can be created.

C.If no schema is specified when an object is created, the default schema PUBLIC is used.

D.A schema enables the creation of multiple objects in a database without encountering namespace collisions.

In object-oriented program languages, a class must exposure its(13) to the outside.

A．variants

B．algorithm

C．interface

D．statements

Traditional structured analysis techniques focus upon the flow of(1)within a system. Object-oriented analysis emphasizes the building of real-world models, It examines requirements from the perspective of the classes and objects found in the vocabulary of the(2)domain.Traditional system design method emphasizes the proper and effective structure of a complex system. Object-oriented design method encompasses the process of object- oriented decomposition and a(3)for depicting both logical and physical as well as static and dynamic models of the system under design.Object-oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an(4)of some class, and whose classes are all members of a hierarchy of classes united via(5)relationships.

A．control

B．program

C．data

D．reference

We often speak of language as a vehicle of expression a metaphor that can illumine many aspects of our foreign language teaching situation, Language is a vehicle of meaning that we do not even realize we are using,in other words, a vehicle that is transporting a person's message somewhere but is not itself the object of the trip.

Which of the following statements about object oriented databse is not correct?

A． Each object has a unique object identity in the system.

B．Encapsulation and inheritance are two important features of object oriented databasE.

C．A subclass can inherit the attributes and methods of all its superclasses.

D．A subclass includes the attributes and methods of all its subclasses.

C++ is used with proper(66) design techniques．

A．class-oriented

B．object-based

C．face to object

D．object-oriented

______is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes．

A．Method

B．Polymorphism

C．Inheritance

D．Encapsulation