Many people view the term"electronic commerce"(or e-commerce)as shopping on the part of the Internet called the（）.However,electronic commerce also covers many other activities,such as businesses trading with other business and internal processes that companies use to support the buying,selling,hiring,planning and other activities.Some people use the term electronic business(or e-business)when they are talking about electronic commerce in this broader sense.For example,IBM defines electronic business as*the transformation of key business process through the use of Internet technologies."Most people use the terms“electronic commerce”and“（）”interchangeably.Herein,the term electronic commerce is used in its broadest sense and includes all business activities using（）.
Some people categorize electronic commerce by types of entities participating in the transactions or business processes.The five general electronic commerce categories are business-to-consumer,business-to-business,business processes,consumer-to-consumer,and business-to-government,among which the following three are most commonly used:
(1)Consumer shopping on the Web,often called business-to-consumer(or B2C)
(2)Transactions conducted between businesses on the Web,often called business-to-business(or B2B)
(3)Transactions and（）in which companies,governments,and other organizations use Internet technologies to support selling and purchasing activities.
To understand these categories better,consider a company that manufactures stereo speakers.The company might sell its finished product to consumers on the Web,which would be B2C electronic commerce.It might also purchase the materials it uses to make the speakers from other companies on the Web,which would be B2B electronic commerce.Businesses often have entire departments devoted to negotiating purchase transactions with their suppliers.These departments are usually named supply management or procurement.Thus,B2B electronic commerce is sometimes called（）.
问题1选项
A.World Wide Web
B.Web page
C.Internet
D.Intranet
问题2选项
A.electronic wallet
B.e-procurement
C.electronic business
D.e-shopping
问题3选项
A.Internet technologies
B.GPS
C.Online banking
D.EDI
问题4选项
A.business-to-business
B.business processes
C.consumer-to-consumer
D.business-to-government
问题5选项
A.e-cash
B.e-procurement
C.e-business
D.e-commerce
一台主机的IP地址为202.123.25.36，掩码为255.255.254.0。如果该主机需要在该网络进行直接广播，那么它应该使用的目的地址为（ ）
在计算机系统的日常维护工作中，应当注意硬盘工作时不能__(2)__。另外，需要防范病毒，而__(3)__是不会被病毒感觉的。
有 4 个 IP 地址：201.117.15.254、201.117.17.01、201.117.24.5 和 201.117.29.3，如果子网掩码为 255.255.248.0，则这 4 个地址分别属于3个子网；其中属于同一个子网的是（）
在异步通信中，每个字符包含1位起始位、7位数据位、1位奇偶位和1位终止位，每秒钟传送200个字符，采用4相位调制，则码元速率为（）。
在 Windows 中，运行（ ）命令得到下图所示结果。以下关于该结果的叙述中，错误的是（ ）。
Pinging 59.74.111.8 with 32 bytes of data:
Reply from 59.74.111.8: bytes=32 time=3ms TTL=60
Reply from 59.74.111.8: bytes=32 time=5ms TTL=60
Reply from 59.74.111.8: bytes=32 time=3ms TTL=60
Reply from 59.74.111.8: bytes=32 time=5ms TTL=60
Ping statistics for 59.74.111.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 3ms, Maximum = 5ms, Average = 4ms
在ISO OSF/RM参考模型中，七层协议中的__(1)__利用通信子网提供的服务实现两个用户进程之间端到端的通信。在这个模型中，如果A用户需要通过网络向B用户传送数据，则首先将数据送入应用层，在该层给它附加控制信息后送入表示层；在表示层对数据进行必要的变换并加头标后送入会话层；在会话层加头标送入传输层；在传输层将数据分解为__(本题)__后送至网络层；在网络层将数据封装成__(3)__后送至数据链路层；在数据链路层将数据加上头标和尾标封装成__(4)__后发送到物理层；在物理层数据以__(5)__形式发送到物理线路。B用户所在的系统接收到数据后，层层剥去控制信息，把原数据传送给B用户。
在OSI/RM中，解释应用数据语义的协议层是（）。
在TCP/IP协议栈中，ARP协议的作用是（）,RARP协议的作用是（请作答此空）。
在地址 http://www.dailynews.com.cn/channel/welcome.htm 中，www.dailynews.com.cn 表示（ ），welcome.htm 表示（请作答此空）。
在电子表格软件Excel中，假设A1单元格的值为15，若在A2单元格输入“=AND(15＜A1，A1＜100)”，则A2单元格显示的值为 （）
