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浮点数加法中，首先必须对阶，使二数阶码相等，才能进行加法运算，对阶时要求 (5) ，尾数相加后还需对尾数进行规格化、含入等处理，才能得到运算结果。如果判断浮点加法结果溢出，可判断 (6) 。

计算机对主存的要求是速度快、容量大、价格低，但现实情况三者很难统一于一身，很难找到这种存储器件。为了能解决这一需求，在主存与CPU之间增加一级 cache，其主要目的是为解决 (1) ，每次CPU访问主存时，都先要查询该单元数据是否已调入cache。为了把主存地址变成cache地址，常常使用3种cache地址映像方式，其时全相联地址映像方式，使用起来最方便、最灵活但查找很困难，为了达到cache的要求，实现时常常采用 (2) ，按照cache字块标志的内容访问映像存储器，查找命中的cache字块地址。

海明码是一种常用的纠错码。如果被校数据是k位二进制数，再增加若干位校验位，使得校验位的值决定于某些被校位数据，当被校数据出错时，可根据校验位值的变化找到出错位，进而纠正出错位。若新增校验位为r位，则校验位之位数与被校验数据之位数应满足 (3) 。
由校验位和被校验位数据逐位异或可得到海明校验值，如果各位海明校验值均为零，表示 (4) 。

计算机运行过程中，遇到突发事件，要求CPU暂时停止正在运行的程序，转去为突发事件服务，服务完毕，再自动返回原程序继续运行，这个过程叫做中断。发生中断的原因称为中断源，它是 (7) ，中断源都有规定的优先级别，中断屏蔽的作用是 (8) 。

软件生存周期包括6个阶段，即制定计划、 (11) 、设计、 (12) 、测试、 (13) 。

计算机运行过程中，遇到突发事件，要求CPU暂时停止正在运行的程序，转去为突发事件服务，服务完毕，再自动返回原程序继续运行，这个过程叫做中断。发生中断的原因称为中断源，它是 (7) ，中断源都有规定的优先级别，中断屏蔽的作用是 (8) 。

软件生存周期包括6个阶段，即制定计划、 (11) 、设计、 (12) 、测试、 (13) 。

计算机对主存的要求是速度快、容量大、价格低，但现实情况三者很难统一于一身，很难找到这种存储器件。为了能解决这一需求，在主存与CPU之间增加一级 cache，其主要目的是为解决 (1) ，每次CPU访问主存时，都先要查询该单元数据是否已调入cache。为了把主存地址变成cache地址，常常使用3种cache地址映像方式，其时全相联地址映像方式，使用起来最方便、最灵活但查找很困难，为了达到cache的要求，实现时常常采用 (2) ，按照cache字块标志的内容访问映像存储器，查找命中的cache字块地址。

海明码是一种常用的纠错码。如果被校数据是k位二进制数，再增加若干位校验位，使得校验位的值决定于某些被校位数据，当被校数据出错时，可根据校验位值的变化找到出错位，进而纠正出错位。若新增校验位为r位，则校验位之位数与被校验数据之位数应满足 (3) 。
由校验位和被校验位数据逐位异或可得到海明校验值，如果各位海明校验值均为零，表示 (4) 。

浮点数加法中，首先必须对阶，使二数阶码相等，才能进行加法运算，对阶时要求 (5) ，尾数相加后还需对尾数进行规格化、含入等处理，才能得到运算结果。如果判断浮点加法结果溢出，可判断 (6) 。

风险分析包括：风险识别、 (16) 、风险评估、 (17) 。

软件生存周期包括6个阶段，即制定计划、 (11) 、设计、 (12) 、测试、 (13) 。

风险分析包括：风险识别、 (16) 、风险评估、 (17) 。

对于下图的NFA，其等价的DFA是（）。

下列实数是声音信号的采样值：

使用[-4，4)的量化间隔把这些采样值线性量化成0，1，2，…，30，31共32个离散值，即把输入值为[-4，-3.75)的样本变换成0，把[-3.75，-3.50)变换成1，…，[3.50，3.75)变换成30，把[3.75，4)变换成31。下列4个采样值经过量化之后的数值是（）。

对象是由对象名、 (45) 、 (46) 组成的。

SQL语言包括4类，它们是 (43) 、数据控制，其中数据控制包括 (44) 。

在关系代数中，最常用的式子是“投影选择联接表达式”（） ，此处凡“R₁×R₂×…×R₂为基本表，F是公式，A₁，A₂，…，A_n为属性，针对这个表达式，SQL设计了SELECT句型：
SELECT A₁，A₂，…．A_n
FROM R₁，R₂，…R_n
WHERE F

对象是由对象名、 (45) 、 (46) 组成的。

SQL语言包括4类，它们是 (43) 、数据控制，其中数据控制包括 (44) 。

设f表示某个二元逻辑运算符，PfQ的真值表如下所示，则PfQ等价于（）。

某书店有一个收银员，该书店最多允许n个购书者进入。将收银员和购书者看做不同的进程，其工作流程如图6-3所示。利用PV操作实现该过程，设置信号量S1、S2和Sn，初值分别为0，0，n。则图6-3中a1、a2、b1和b2应分别填入（）。

类比二分搜索算法，设计k分搜索算法(k为大于2的整数)如下：首先检查n/k处(n为被搜索集合的元素个数)的元素是否等于要搜索的值，然后检查2n/k处的元素，……，这样，或者找到要搜索的元素，或者把集合缩小到原来的1/k；如果未找到要搜索的元素，则继续在得到的集合上进行k分搜索；如此进行，直到找到要搜索的元素或搜索失败。此k分搜索算法在最坏情况下搜索成功的时间复杂度为 (57) ，在最好情况下搜索失败的时间复杂度为 (58) 。

类比二分搜索算法，设计k分搜索算法(k为大于2的整数)如下：首先检查n/k处(n为被搜索集合的元素个数)的元素是否等于要搜索的值，然后检查2n/k处的元素，……，这样，或者找到要搜索的元素，或者把集合缩小到原来的1/k；如果未找到要搜索的元素，则继续在得到的集合上进行k分搜索；如此进行，直到找到要搜索的元素或搜索失败。此k分搜索算法在最坏情况下搜索成功的时间复杂度为 (57) ，在最好情况下搜索失败的时间复杂度为 (58) 。

FTP协议是Internet常用的应用层协议，它通过 (61) 协议提供服务，它是基于Client/Server结构通信的，作为服务器一方的进程，通过监听 (62) 端口得知有服务请求。

FTP协议是Internet常用的应用层协议，它通过 (61) 协议提供服务，它是基于Client/Server结构通信的，作为服务器一方的进程，通过监听 (62) 端口得知有服务请求。

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.
Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.
Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.
Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.
Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.
Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.
Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.
Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.
Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.
Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.
Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.