【名词&注释】
外观设计(appearance design)、软件产品(software product)、配置文件(configuration file)、电脑系统(brain system)、光纤网、数据链路层(data link layer)、实用新型专利(utility model patent)、系统总线(system bus)、八进制数(octal number)、十六进制数(hexadecimal number)
[单选题]在OSI参考模型中，网桥实现互联的层次为______。
A. 物理层
B. 数据链路层
C. 网络层
D. 高层
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举一反三：
[单选题]Software design is a(46) process. It requires a certain amount of fl air on the part of the(47). Design can not be learned from a book . It must be practiced and learnt by experience and study of existing systems. A well(48) software system is straightforward to implement and maintain , easily(49) and reliable. Badly(48) software systems, although they may work are(50) to be expensive to maintain , difficult to test and unreliable.
A. create
B. creative
C. creating
D. created
[单选题]关于DMA技术，下列选项中，正确的是(57)。
A. 是主存与CPU之间传送数据的方式
B. 系统没有CPU
C. 系统需要CPU的干预
D. 过程开启和结束时，需要CPU处理，传送数据过程中不需要CPU干预
[单选题]目前，人们一直关注“三网融合”问题。这里的“三网”是指(37)。
A. GSM，GPS，GPRS
B. 电信网，计算机网，有线电视网
C. 宽带网，万维网，局域网
D. 无线通信网，ADSL，光纤网
[多选题]●Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each department or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.(66)
A. same
B. similar
C. different
D. difference
E. same
F. similar
G. different
H. difference
I. consolidates
J. consists
K. considerate
L. consoles
M. faced on
N. faced with
O. faced about
P. faced up to
Q. in general
R. in any term
S. in set terms
T. in terms of
[多选题]在Windows XP中，不能用作文件名的是(37)。
A. 123$4．%A
B. 123&4.exe
C. gz；shzh; zhh@gd
D. df/Program File.Doc
[多选题]●与十六进制数(hexadecimal number)AC．E等值的十进制数是 (1) ，等值的八进制数(octal number)是 (2) 。
A. 112.875
B. 162.875
C. 172.7
D. 172.875
E. 254.16
F. 254.7
G. 530.07
H. 530.7
[单选题]在Linux操作系统中，(64)配置文件包含主机名到IP地址的映射。
A. /etc/hostname
B. /etc/hosts
C. /etc/resolv.conf
D. /etc/networks
[单选题]●非空二叉排序树的定义是：若根结点具有左子树，则左子树中所有结点的关键码均小于根结点的关键码；若根结点具有右子树，则右子树中所有结点的关键码均大于根结点的关键码；左、右子树也是二叉排序树。由此可知，在一个二叉排序树中,(40)。(40)
A. 从根结点到任何一个叶子结点的路径上，结点的关键码序列呈递增排列
B. 从根结点到任何一个叶子结点的路径上，结点的关键码序列呈递减排列
C. 同层次结点从左向右排列，结点的关键码序列呈递增排列
D. 同层次结点从左向右排列，结点的关键码序列呈递减排列
[单选题]根据我国相关法律的规定，实用新型专利(utility model patent)和外观设计专利的保护期为(20)年，单位软件产品的著作权保护期为(21)年。
A. 20
B. 15
C. 25
D. 10
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