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以下不属于按设定值变化分类的是()。 The following items which are not classified according to the change of set value are ()A.定值控制系统Fixed value control systemB.程序控制系统 Program control systemC.随动控制系统 Follow-up control systemD.流量控制系统Flow control system

题目

以下不属于按设定值变化分类的是()。 The following items which are not classified according to the change of set value are ()

A.定值控制系统Fixed value control system

B.程序控制系统 Program control system

C.随动控制系统 Follow-up control system

D.流量控制系统Flow control system


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更多“以下不属于按设定值变化分类的是()。 The following items which are not classified according to the change of set value are ()”相关问题
  • 第1题:

    According to the passage, which of the following is NOT true?__________ 查

    A.Social change tends to meet with more difficulty in basic and emotional aspects of society
    B.Disagreement with and argument about conditions tend to slow down social change
    C.Social change is more likely to occur in the material aspect of society
    D.Social change is less likely to occur in what people learned when they were young

    答案:B
    解析:
    根据第二段“social changes is also likely to occur more frequently and mole readily in thematerial aspects…in what has been learned later in life rather than what was learned early…in the less basic andless emotional aspects of society than in their opposites”可知A、C、D项都正确,而由第一段最后一句可知,不同的观点以及对现状不满可以加速社会变革.因此B项错误。

  • 第2题:

    You issued the following statement:   SQL> ALTER SESSION SET NLS_LANG=FRENCH_CANADA.WE8ISO8859P1;   Which parameter is NOT overridden by using the above statement?()  

    • A、 the value of the NLS_LANGUAGE variable
    • B、 the value of the NLS_TERRITORY variable
    • C、 the value of the NLS_CURRENCY variable
    • D、the character encoding scheme used by the client application

    正确答案:C

  • 第3题:

    An administrator has just imported a shred Volume Group that had been created on another  system in the cluster. In order for the shred volume to be used in the cluster, what is the most important step for the administrator to take first?()   

    • A、 Change the quorum required to false.
    • B、 Change the Volume Group auto vary on to yes, and then vary off the Volume Group.
    • C、 Change the auto vary on value of the Volume Group to no, and then vary off the volume group.
    • D、 Set the Volume Group major number to the same value that the Volume Group had on the system on which it was created.

    正确答案:C

  • 第4题:

    On a newly installed AIX V4 machine, which of the following default values applies to the ipforwarding network option?()

    • A、 The ipforwarding is off by default. 
    • B、 The ipforwarding is set on by default. 
    • C、 The value is dynamically determined at boot time by DHCP. 
    • D、 The value is equal to the setting of the directed_broadcast runtime attribute.

    正确答案:A

  • 第5题:

    When a job exceeds the date specified in its END_DATE attribute, which of the following will happen?()

    • A、The job will be dropped automatically if the value of the AUTO_DROP attribute is TRUE
    • B、The job will only be disabled if the value of the AUTO_DROP attribute is FALSE
    • C、The STATE attribute of the job will be set to COMPLETED if the value of the AUTO_DROP attribute is FALSE
    • D、All objects referenced by the job will be dropped if the value of the AUTO_DROP attribute is TRUE and the value of the CASCADE attribute is TRUE
    • E、The STATE column of the job table will be set to COMPLETED for the job

    正确答案:A,B,E

  • 第6题:

    To enable resumable space allocation for the instance, which of the following initialization parameters should you set to a nonzero value?()

    • A、 RESUMABLE_SPACE_TIME
    • B、 RESUMABLE_SPACE
    • C、 RESUMABLE_TIME
    • D、 RESUMABLE_TIMEOUT
    • E、 TIME_RESUMABLE

    正确答案:D

  • 第7题:

    单选题
    To change the read sizes on a V3 network file system server, which of the following options would need to be set?()
    A

    rsize

    B

    nfs_max_read_size

    C

    nfs_server_clread

    D

    nfs_rfc1323


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    Given the following table definition: STOCK: item VARCHAR(30) status CHAR(1) quantity INT price DEC(7,2) If items are indicated to be out of stock by setting STATUS to NULL and QUANTITY and PRICE to zero, which of the following statements would be used to update the STOCK table to indicate that all the items whose description begins with the letter "S" are out of stock?()
    A

    UPDATE stock SET (status = NULL; quantity, price = 0) WHERE item LIKE S%

    B

    UPDATE stock SET (status, quantity, price) = (NULL, 0, 0) WHERE item LIKE S%

    C

    UPDATE stock SET status = NULL, SET quantity = 0, SET price = 0 WHERE item LIKE 'S%'

    D

    UPDATE stock SET (status = NULL), (quantity = 0), (price = 0) WHERE item LIKE S%


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    Which of the following is most clearly similar to a cline as it is described in the second paragraph of the text?
    A

    A vegetable market in which the various items are grouped according to place of origin.

    B

    A wheat field in which different varieties of wheat are planted to yield a crop that will bring the maximum profit.

    C

    A flower stall in which the various species of flowers are arranged according to their price.

    D

    A housing development in which the length of the front struts supporting the porch of each house increases as houses are built up the hill.


    正确答案: D
    解析:
    词汇理解题。文章第二段第一句提到Biologists call this kind of gradual variation over a certain geographic range a “cline” and interpret clines as strong indications that the variation is adaptive, a response to environmental differences。即cline是受环境影响而产生的某种适应性变化,D项“支撑房子门廊的前方支柱随着房子在山上建造的高度增加而伸长”,与原文的“受环境影响而产生适应性变化”表述一致,本题答案是D项。

  • 第10题:

    单选题
    Which of the following definitions can be used to define the term ‘offset ’ as a characteristic of controller action?()
    A

    The period of time in which the set point and the control point coincide

    B

    The periodic change between the set point and the control point

    C

    The variable difference between the set point and the control point

    D

    The constant difference between the set point and the control point


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following statements is true regarding the initialization parameter DIAGNOSTIC_DEST?()   The default value is the value of the environment variable $ORACLE_HOME; if $ORACLE_HOME isn’t set
    A

     then the default is set to $ORACLE_BASE  The default value is the value of the environment variable $ORACLE_BASE; if $ORACLE_BASE isn’t set,

    B

     then it is set to $ORACLE_HOME

    C

     DIAGNOSTIC_DEST is always equal to $ORACLE_HOME

    D

     DIAGNOSTIC_DEST is always equal to $ORACLE_BASE


    正确答案: B
    解析: 暂无解析

  • 第12题:

    单选题
    Which value is valid for the iterate parameter in SET_TIMER built-in procedure? ()
    A

    REUSE 

    B

    RECYCLE 

    C

    NO_CHANGE 

    D

    OCCURRENCE


    正确答案: D
    解析: 暂无解析

  • 第13题:


    Which of the following concerning natural gas is NOT true?( )

    A.It was not favored in the past.
    B.It is easily affected by the change of the climate.
    C.People are beginning to realize its value.
    D.It is increasingly cheaper to be liquefied.

    答案:B
    解析:

  • 第14题:

    You established access to menu modules using roles. While testing the application, you need access to all the menus in the SALES form module for all the roles. Which method will override the Menu Module Roles property to allow you to access all the menu items?()

    • A、Disable the values for the Menu Module Roles property. 
    • B、Set the Use Security value in the form module Property Palette to 'True'. 
    • C、Set the Use Security value in the form module Property Palette to 'False'. 
    • D、Set the Use Security value in the menu module Property Palette to 'True'. 
    • E、Set the Use Security value in the menu module Property Palette to 'False'. 

    正确答案:E

  • 第15题:

    A support specialist started to apply an APAR on a system by inserting the tape into the tape drive, and loaded the fix using smitty installp. The following error message is displayed: tape not in backup format   Which of the following will resolve this problem?()

    • A、Change density setting to 2
    • B、Set tape device to /dev/rmt0
    • C、Set block size to 0 for variable
    • D、Enable compression on tape device

    正确答案:C

  • 第16题:

    To change the read sizes on a V3 network file system server, which of the following options would need to be set?()

    • A、rsize
    • B、nfs_max_read_size
    • C、nfs_server_clread
    • D、nfs_rfc1323

    正确答案:B

  • 第17题:

    Which of the following statements is true regarding the initialization parameter DIAGNOSTIC_DEST?()   The default value is the value of the environment variable $ORACLE_HOME; if $ORACLE_HOME isn’t set  

    • A、 then the default is set to $ORACLE_BASE  The default value is the value of the environment variable $ORACLE_BASE; if $ORACLE_BASE isn’t set,
    • B、 then it is set to $ORACLE_HOME
    • C、 DIAGNOSTIC_DEST is always equal to $ORACLE_HOME
    • D、 DIAGNOSTIC_DEST is always equal to $ORACLE_BASE

    正确答案:B

  • 第18题:

    The current time zone for one of the user sessions is set to the database local time zone. For one application, the user session requires the time zone to be set to the local operating system time zone without affecting other user sessions. Which two solutions could the user implement to achieve this objective? ()

    • A、 use the ALTER SYSTEM command to change the time zone
    • B、 use the ALTER SESSION command to change the time zone
    • C、 use the ALTER DATABASE command to change the time zone
    • D、 set the value for the operating system variable ORA_SDTZ on the client machine
    • E、 set the value for the operating system variable ORA_SDTZ on the database server machine

    正确答案:B,D

  • 第19题:

    单选题
    Which of the following questions is answered according to the passage?
    A

    What advantages does EMS have over the private couriers?

    B

    When was EMS set up?

    C

    How many countries have started EMS?

    D

    What items are not allowed in EMS?


    正确答案: C
    解析:
    是非题。选项A的内容在第三段首句指出“EMS has some advantages over the private couriers.”,接下来该段对这些advantages进行了一一介绍,因此选A。

  • 第20题:

    多选题
    You decided to increase the value for the SHARED_SERVERS parameter by using the following command:  SQL> ALTER SYSTEM SET SHARED_|SERVERS=3 SCOPE=?;  Which three values can be specified for the SCOPE clause?()
    A

    ALL

    B

    PFILE

    C

    BOTH

    D

    NONE

    E

    SPFILE

    F

    MEMORY

    G

    INSTANCE

    H

    DATABASE


    正确答案: C,E,F
    解析: 暂无解析

  • 第21题:

    单选题
    Which of the following is true according to the passage?
    A

    The man was a heavy smoker.

    B

    The man smiled to please the guard.

    C

    The guard set the man free with permission.

    D

    The man hadn’t thought the guard would set him free.


    正确答案: A
    解析:
    文章第二段倒数第三句提到“Suddenly, without another word, he unlocked my cell and silently led me out”警卫突然二话不说打开了牢门,悄悄地带他逃离监狱。由此可见,作者根本没有想到警卫会把自己放走。故选D。

  • 第22题:

    多选题
    Using Oracle Enterprise Manager to set SGA pool values manually, for which of the following pools does Oracle EM offer advice to set the value appropriately?()
    A

    DB_CACHE_SIZE

    B

    SHARED_POOL_SIZE

    C

    LARGE_POOL_SIZE

    D

    JAVA_POOL_SIZE

    E

    SGA_MAX_SIZE

    F

    SORT_AREA_SIZE


    正确答案: B,C
    解析: 暂无解析

  • 第23题:

    多选题
    The current time zone for one of the user sessions is set to the database local time zone. For one application, the user session requires the time zone to be set to the local operating system time zone without affecting other user sessions. Which two solutions could the user implement to achieve this objective? ()
    A

    use the ALTER SYSTEM command to change the time zone

    B

    use the ALTER SESSION command to change the time zone

    C

    use the ALTER DATABASE command to change the time zone

    D

    set the value for the operating system variable ORA_SDTZ on the client machine

    E

    set the value for the operating system variable ORA_SDTZ on the database server machine


    正确答案: E,D
    解析: 暂无解析

  • 第24题:

    单选题
    The degree to which the viscosity of an oil will change with a change in temperature is indicated by the ().
    A

    weight designation

    B

    viscosity index

    C

    pour point

    D

    thermal change value


    正确答案: D
    解析: 暂无解析