更多“● The parties to government procurement refer to the principal entities of all kinds that ”相关问题
  • 第1题:

    One tool that is useful during both analysis and design is the ______,which is a pictorial representation of the items of infonnation(entities)within the system and the relationships between these pieces of information.

    A.data dictionary

    B.dataflow diagram

    C.use case diagram

    D.entity-relationship diagram


    正确答案:D
    解析:在系统分析和设计中同样适用的工具是答案D实体关系图,它通过图形形式,表现系统内的实体信息以及这些信息之间的关系。

  • 第2题:

    [A] bodies [B] parties [C] sides [D] units


    正确答案:B

  • 第3题:

    执行下列语句之后,正确的是() float m=100, n=200; float &refer_m=m, &refer_n=n;

    A.&refer_m=n;

    B.*refer_m=*refer_n;

    C.refer_m=refer_n;

    D.&refer_m=&refer_n;


    refer_m=refer_n;

  • 第4题:

    YouareimplementinganASP.NETapplicationthatusesLINQtoEntitiestoaccessandupdatethedatabase.TheapplicationincludesthefollowingmethodtoupdateadetachedentityoftypePerson.YouneedtoimplementtheUpdatePersonmethodtoupdatethedatabaserowthatcorrespondstothepersonToEditobject.Whichcodesegmentshouldyouuse?()

    A._entities.People.Attach(personToEdit);_entities.ObjectStateManager.ChangeObjectState(personToEdit,EntityState.Modified);_entities.SaveChanges();

    B._entities.ObjectStateManager.ChangeObjectState(personToEdit,EntityState.Added);_entities.SaveChanges();

    C._entities.People.ApplyCurrentValues(personToEdit);_entities.SaveChanges();

    D._entities.People.Attach(newPerson(){Id=personToEdit.Id});_entities.ObjectStateManager.ChangeObjectState(personToEdit,EntityState.Modified);_entities.SaveChanges();


    参考答案:A

  • 第5题:

    Because objects( ) data and implementation, the user of an object can view the object as a black box that provides services.

    A.encapsulate
    B.inherit
    C.connect
    D.refer

    答案:A
    解析:

  • 第6题:

    3、执行下列语句之后,正确的是() float m=100, n=200; float &refer_m=m, &refer_n=n;

    A.&refer_m=n;

    B.*refer_m=*refer_n;

    C.refer_m=refer_n;

    D.&refer_m=&refer_n;


    B 解析:考查二维数组的定义和初始化。在选项B)中,因为数组第一维的数目不明确,所以理解会有歧义,可以理解为1行3列,或者2行3列等。