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问题 单项选择题

多媒体技术中的“媒体”有两层概念，其一是传播信息的载体，其二为（）。

A.发布信息的载体

B.替换信息的载体

C.存储信息的载体

D.其他选项都不对

答案

参考答案：C

多项选择题

常用的柔性接口有( )。

A．沥青卷材接口

B．橡皮圈接口

C．预制套环石棉水泥

D．水泥砂浆抹带接口
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单项选择题

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up （71） at the customer premise over slow （72） ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet （73）technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the （74） or cable "modem" over a much faster medium such as Ethernet.It also means that multiple （75） can connect to the Internet through the same connection.

75（）

A．cables

B．hosts

C．servers

D．modems
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