【C7】

对于一个具有n个结点和e条边的无向图，若采用邻接表表示，则所有边链表中边结点的总数为(39)。

A．2e

B．e/4

C．e/2

D．n+2e

对于一个具有n个顶点和e条边的无向图，若采用邻接表表示，则表头向量的大小为( )，所有邻接表中的结点总数为( )。

A．e/2

B．e

C．2e

D．n+e

A．2e

B．e/4

C．e／2

D．n+2e

e originally designed for openness and flexibility, not for(67)The ARPA researchers needed to share information easily, so everyone needed to be an unrestricted "insider" on the network. Although the approach was appropriate at the time, it is not one that lends itself to today's commercial and government use.

As more locations with computers(known as(68)in Internet parlance)joined the ARPANET, the usefulness of the network grew. The ARPANET consisted primarily of university and government computers, and the applications supported on this network were simple: electronic mail( E - mail), electronic news groups, and(69)connection to other computers. By 1971, the Internet linked about two dozen research and government sites, and researchers had begun to use it to exchange(70)not directly related to the ARPANET itself. The network was becoming an important tool for collaborative research.

A．protocols

B．statute

C．law

D．enactment

A．many-multimedia

B．multimedia

C．numerous-media

D．myriad-media

图像序列中的两幅相邻图像，后一幅图像与前一幅图像之间有较大的相关，这是______

A．空间冗余

B．时间冗余

C．信息冗余

D．视觉冗余

A．快速读写

B．有高达200:1的压缩比

C．无失真的传输视频信号

D．提供大量基本模板

在多媒体的音频处理中，由于人所敏感的音频最高为(1)赫兹(Hz)，因此，数字音频文件中对音频的采样频率为(2)赫兹(Hz)。对于一个双声道的立体声，保持一秒钟的声音，其波形文件所需的字节数为(3)，这里假设每个采样点的量化位数为8位。

A．50

B．10k

C．22k

D．44k