E-mail地址格式中,()是分隔符,用于分隔用户名和域名。
D.
E-mail地址格式中,()是分隔符,用于分隔用户名和域名。
D.
若把Web站点视为图书馆中的(),Web页则是书中的某一页。
4G is the fourth generation wireless technology adopted by the ( ) and carriers around the worl
字长是CPU一次性处理的数据位数,是衡量计算机性能的重要指标,现今流行的主要职能手机CPU字长为( )。[1分]
关于程序设计语言,下列说法错误的是( )。[1分]
Nobody had predicted the scale of impact of ( ) communications and that it world be one of the largest businesses in the history of mankind with and immense impact on all economies.[1分]
Deploying enhanced broadband services over existing network infrastructure ( )in increase of the network complexity and therefore,extra expenses on network management and maintenanc
下列属于系统软件的是( )。[1分]
下列不属于操作系统功能的是( )。[1分]
The approaching 4G mobile communication systems are projected to ( ) still remaining problems of 3G systems and to provide ( ) new services ,from high-quality voice to high-definition video to high data-rate wireless channels.[1分]
计算机通信网按作用范围分LAN.MAN.WAN,下列描述错误的是( )。[1分]