参考答案和解析
正确答案:B

本题考查形容词的词义辨析。填入的形容词修饰pass。原文意为:把多种形式的票和券合为一张智能卡,[B]项“单一的,专一的”,有把不同的东西统一标准或合为一体的意思,如a single scale of wages(单一工资等级),是正确选项。[A]项“独一无二的,独特的”,强调独特性,意为being the only one of its kind,如the unique human ability(人类独有的能力);[C]项“整体的,统一的,不可分的”,强调完整性,指relating to or existing as a single unit,如 a unitary policy of government(政府的统一政策);[D]项“惟一的,单独的”,强调某种情况下的惟一性,指there is one person, thing, or group in a particular situation and no others,如I was the only one who disagreed(我是惟一一个持不同意见的人)

更多“[A]unique [B]single [C]unitary [D]only ”相关问题
  • 第1题:

    根据SQL标准,要创建唯一索引该使用下面哪种语句?()

    A CREATE UNIQUE INDEX

    B CREATE CLUSTER INDEX

    C CREATE ONLY INDEX

    D CREATE PRIMARY INDEX


    参考答案A

  • 第2题:

      mysql中唯一索引的关键字是

    A.fulltext index

    B.only index

    C.unique index

    D.index


    C

    【解析】在为这个数据列创建索引的时候就应该使用关键字UNIQUE,把它定义为一个唯一索引。

  • 第3题:

    Which three statements about subqueries are true?()

    • A、A single row subquery can retrieve only one column and one row.
    • B、A single row subquery can retrieve only one row but many columns.
    • C、A multiple row subquery can retrieve multiple rows and multiple columns.
    • D、A multiple row subquery can be compared by using the “>” operator.
    • E、A single row subquery can use the IN operator.
    • F、A multiple row subquery can use the “=” operator.

    正确答案:B,C,E

  • 第4题:

    In the United States,educational policies are determined by()

    • A、the federal government
    • B、female only institutions
    • C、single sex institutions
    • D、coeducation institutions

    正确答案:C

  • 第5题:

    which one of the following accurately describes field names?()

    • A、they must be unique in a database  
    • B、they can only be used once in a view  
    • C、they can only used once on each form  
    • D、they can be used mulriple times on a form 

    正确答案:C

  • 第6题:

    Which two statements are true about the primary key constraint in a table? ()

    • A、It is not possible to disable the primary key constraint.
    • B、It is possible to have more than one primary key constraint in a single table.
    • C、The primary key constraint can be referred by only one foreign key constraint.
    • D、The primary key constraint can be imposed by combining more than one column.
    • E、The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.

    正确答案:D,E

  • 第7题:

    Which two statements are true regarding listeners()

    • A、Listeners use only the TCP/IP protocol.
    • B、Multiple listener processes can run simultaneously on a host.
    • C、Multiple database instances can be registered with a single listener.
    • D、The listener-related errors can be traced only at the administrative level.
    • E、Only one database instance can be registered with a single listener at any time.

    正确答案:B,C

  • 第8题:

    You have a server that runs Windows Server 2008. The Web Server (IIS) role is installed.  You plan to host multiple Web sites on the server. You configure a single IP address for the server. All Web sites are registered in DNS to point to the single IP address.  You need to ensure that each Web site only responds to requests by name from all client computers.  What should you do?()

    • A、Configue a unique port for each Web site.
    • B、Configue a unique IP address for each Web site.
    • C、Configue a unique Host Header for each Web site.
    • D、Edit the Hosts file on the server to add all the Web site names associated to the network address.

    正确答案:C

  • 第9题:

    单选题
    which one of the following accurately describes field names?()
    A

    they must be unique in a database  

    B

    they can only be used once in a view  

    C

    they can only used once on each form  

    D

    they can be used mulriple times on a form 


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the following drive types can be combined in a single EXP5000 expansion unit?()
    A

    SSD, SATA and FC only 

    B

    SSD, SAS and FDE only 

    C

    SSD, FDE, SATA and FC only 

    D

    SSD, SAS, FDE, FC and SATA


    正确答案: D
    解析: 暂无解析

  • 第11题:

    多选题
    Which two statements are true regarding single row functions?()
    A

    They accept only a single argument

    B

    They can be nested only to two levels

    C

    Arguments can only be column values or constants

    D

    They always return a single result row for every row of a queried table

    E

    They can return a data type value different from the one that is referenced


    正确答案: A,B
    解析: 暂无解析

  • 第12题:

    单选题
    You have a server that runs Windows Server 2008. The Web Server (IIS) role is installed.  You plan to host multiple Web sites on the server. You configure a single IP address for the server. All Web sites are registered in DNS to point to the single IP address.  You need to ensure that each Web site only responds to requests by name from all client computers.  What should you do?()
    A

    Configue a unique port for each Web site.

    B

    Configue a unique IP address for each Web site.

    C

    Configue a unique Host Header for each Web site.

    D

    Edit the Hosts file on the server to add all the Web site names associated to the network address.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Which two steps are needed when configuring multiple RPs using MSDP within a single PIM domain? ()

    A. Configure a non-unique address on the loopback interface for use by the PIM RP.

    B. Configure MSDP with the unique address (router ID) as the local address of the peer.

    C. Configure MSDP with the non-unique address (router ID) as the local address of the peer.

    D. Configure a unique address on the loopback interface, used as the PIM RP.


    参考答案:A, B

  • 第14题:

    The album is as it was the only one ever signed by the President.

    [A] unusual

    [B] unique

    [C] rare

    [D] singular


    正确答案:B

  • 第15题:

    Which two steps are needed when configuring multiple RPs using MSDP within a single PIM domain? ()

    • A、Configure a non-unique address on the loopback interface for use by the PIM RP.
    • B、Configure MSDP with the unique address (router ID) as the local address of the peer.
    • C、Configure MSDP with the non-unique address (router ID) as the local address of the peer.
    • D、Configure a unique address on the loopback interface, used as the PIM RP.

    正确答案:A,B

  • 第16题:

    Which of the following drive types can be combined in a single EXP5000 expansion unit?()

    • A、SSD, SATA and FC only 
    • B、SSD, SAS and FDE only 
    • C、SSD, FDE, SATA and FC only 
    • D、SSD, SAS, FDE, FC and SATA

    正确答案:C

  • 第17题:

    Which statements about inheritance are true?()         

    • A、 In Java programming language only allows single inheritance.
    • B、 In Java programming language allows a class to implement only one interface.
    • C、 In Java programming language a class cannot extend a class and implement a interface together.
    • D、 In Java programming language single inheritance makes code more reliable.

    正确答案:A,D

  • 第18题:

    Which  statements are true regarding listeners()

    • A、Listeners use only the TCP/IP protocol.
    • B、Multiple listener processes can run simultaneously on a host.
    • C、Multiple database instances can be registered with a single listener.
    • D、The listener-related errors can be traced only at the administrative level.
    • E、Only one database instance can be registered with a single listener at any time

    正确答案:B,C

  • 第19题:

    Cer-tech .com has a server that runs Windows Server 2008. You have installed the Web Server (IIS) roleon it. Cer-tech plans to host multiple websites on the server. To achieve this you configure a single IPaddress on the server. You also configure all websites to be registered in DNS to point to the single IP address configured on the server. You have to make sure that each and every website responds only to thename requests from all client machines. What should you do to achieve this task?()

    • A、Configure the primary and secondary DNS to point to the server’s IP address
    • B、Configure a network address for each website
    • C、Assign a unique port for each website
    • D、Configure and assign a unique Host Header to each website

    正确答案:D

  • 第20题:

    Which two statements are true regarding single row functions?()

    • A、They accept only a single argument 
    • B、They can be nested only to two levels 
    • C、Arguments can only be column values or constants 
    • D、They always return a single result row for every row of a queried table 
    • E、They can return a data type value different from the one that is referenced

    正确答案:D,E

  • 第21题:

    多选题
    Which two steps are needed when configuring multiple RPs using MSDP within a single PIM domain? ()
    A

    Configure a non-unique address on the loopback interface for use by the PIM RP.

    B

    Configure MSDP with the unique address (router ID) as the local address of the peer.

    C

    Configure MSDP with the non-unique address (router ID) as the local address of the peer.

    D

    Configure a unique address on the loopback interface, used as the PIM RP.


    正确答案: D,A
    解析: 暂无解析

  • 第22题:

    名词解释题
    单位弹性(Unitary elasticity)

    正确答案: 需求的价格弹性等于1。
    解析: 暂无解析

  • 第23题:

    多选题
    Which two statements are true about the primary key constraint in a table? ()
    A

    It is not possible to disable the primary key constraint.

    B

    It is possible to have more than one primary key constraint in a single table.

    C

    The primary key constraint can be referred by only one foreign key constraint.

    D

    The primary key constraint can be imposed by combining more than one column.

    E

    The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.


    正确答案: D,B
    解析: 暂无解析