某计算机的时钟频率为400MHz，测试该计算机的程序使用4种类型的指令。每种指令的数量及所需指令时钟数(CPI)见表7-1，则该计算机的运算速度约为 (6) MIPS。
表7-1 各种指令的数量及所需指令时钟数

A:106.7 B:169.5 C:207.3 D:216.2

某请求分页存储管理系统中，容量为1MB的主存被划分为512块，其页表见表7-2。若给定一十进制逻辑地址为7058，其十进制物理地址是 (36) 。
表7-2 某请求分页存储管理系统的页表

A:6186 B:12330 C:34858 D:因产生缺页中断，暂时无法获得

某网站用到的层叠样式表文件(example.css)在网站根目录下的include文件夹下，某网页文件在网站根目录下的admin目录中，请完成以下该页面导入外部样式表文件的部分代码。
＜meta http-equiv="Content-TyPe" content="text/html; charset=gb2312"＞
＜ (41) href=" (42) " rel="stylesheet" type="text/ess"＞

A:a B:link C:css D:open

某网站用到的层叠样式表文件(example.css)在网站根目录下的include文件夹下，某网页文件在网站根目录下的admin目录中，请完成以下该页面导入外部样式表文件的部分代码。
＜meta http-equiv="Content-TyPe" content="text/html; charset=gb2312"＞
＜ (41) href=" (42) " rel="stylesheet" type="text/ess"＞

A:../include/example.css B:../admin/include/example.css C:../admin/example.css D:../example.css

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
A socket is composed of two addresses: (74) .
Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.

A:ISO B:ITU C:IEEE D:CCITT

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
A socket is composed of two addresses: (74) .
Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.

A:FDDI B:ATM C:Ethernet D:SMDS

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
A socket is composed of two addresses: (74) .
Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.

A:The hub B:The bridge C:The router D:The proxy

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
A socket is composed of two addresses: (74) .
Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.

A:MAC address and IP address B:MAC address and port address C:E-mail address and IP address D:port number and IP address

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
A socket is composed of two addresses: (74) .
Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.

A:similar B:different C:same D:difference

(68) 是网络协议。

A:HTML B:HTTP C:WWW D:ISP