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更多“A word processor enables you to create a(66)., store it electronically on a disk, display ”相关问题
  • 第1题:

    As mentioned above, C imposes relatively few built - in ways of doing things on the program- mer. Some common tasks, such as manipulating(66),(67), and doing(68)(I/O), are performed by calling on library functions. Other tasks which you might want to do, such as creating or listing directories, or interacting with a mouse, or displaying windows or other(69)elements, or doing color graphics, are not defined by the C language at all. You can do these things from a C program, of course, but you will be calling on services which are peculiar to your programming environment(70), processor, and operating system)and which are not defined by the C standard. Since this course is about portable C programming, it will also be steering clear of facilities not provided in all C environments.

    A.lines

    B.strings

    C.threads

    D.routes


    正确答案:B
    解析:strings:字符串

  • 第2题:

    Thestatisticsforapoorlyperformingx366systemareasfollows:(1)Processor:90%for5secondincrements(2)Memorypagefaults:20/secondaverageover15minutes(3)Disk:disktime1%Whichofthefollowingwillprovidethegreatestperformanceimprovement?()

    A.Addmemory

    B.Addaprocessor

    C.Addafasterdisksubsystem

    D.Exchangetheprocessorwithafasterprocessor


    参考答案:D

  • 第3题:

    Some of the keys have a special use. There are referred to as command keys. The 3 most common are the Control or(66), Alternate or(67)and the Shift keys though there can be more(the Windows key for example or the Command key). Each key on a standard keyboard has one or two characters. Press the key to get the lower character and hold Shift to get the upper. Disk Drives - All(68)need a drive to get information off - or(69)- and put information on the disk - or(70). Each drive is designed for a specific type of disk whether it is a CD, DVD, hard disk or floppy. Often the term 'disk'and 'drive'are used to describe the same thing but it helps to understand that the disk is the storage device which contains computer files-or software - and the drive is the mechanism that runs the disk.

    A.CON

    B.CTRL

    C.COTL

    D.CTR


    正确答案:B
    解析:CTRL:键盘上的Ctrl键

  • 第4题:

    Thestatisticsforapoorlyperforming,dual-processorx365systemareasfollows:(1)Processor:80%for5-secondincrements(2)Memorypagefaults:360/secondaverageover15minutes(3)Disk%disktime:100%Whichofthefollowingwillprovidethegreatestperformanceimprovement?()

    A.Addmemory

    B.Addaprocessor

    C.Exchangetheexistingprocessorforafasterprocessor

    D.Addafasterdisksubsystem


    参考答案:A

  • 第5题:

    ExaminetheRMANcommand:SWITCHDATAFILE’/DISK3/user_data01.dbf’;Whichcommanddoyouneedtoissuebeforeyouissuetheabovecommand,sothatRMANfindsthefileintherestoredlocationof’DISK2/user_data01.dbf’?()

    A.RESTOREDATAFILE’/DISK2/user_data01.dbf’

    B.RESTOREDATAFILE’/DISK3/user_data01.dbf’

    C.SETNEWNAMEFOR’/DISK3/user_data01.dbf’TO’/DISK2/user_data01.dbf’

    D.SETNEWNAMEFOR’/DISK2/user_data01.dbf’TO’/DISK3/user_data01.dbf’


    参考答案:C

  • 第6题:

    一个可进行硬件验证的完整的SOBEL图像边缘检测器包括的模块有()

    A.帧窗口接收模块(FIFO)

    B.串入并出模块(SIPO)

    C.像素窗口刷新模块(REFRESH)

    D.数据处理模块(PROCESSOR)

    E.图像数据(模拟)采集模块(MINPUT)

    F.数据显示处理模块(DISPLAY)


    增加1个数据寄存器模块,将需要测试的有关数据(比如36个数据)事先存储在数据寄存器模块中,每来1个时钟信号上升沿,按要求不断地输出数据进入现有的图像边缘检测器来模拟数据采集;增加1个动态数据显示模块,将输入和输出的有关数据使用动态扫描的方式进行显示