全国职称英语考试成绩查询>text是什么意思软件水平考试中级网络工程师上午基础知识(计算机专业英语)历年真题试卷精选3 (题后含答案及解析)dafe
长春会计培训学校>尼古丁英文wrecking ball题型有:1. 选择题 spots
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ARPAnet is a wide area network(WAN).A network that connected Department of Defen rearch sites across(1).Created in 1 969 with funding from the Advanced Rearch Projects Agency(ARPA).Undergoing constant rearch and development in the early—to mid一1970s,ARPAnet(2)aS the test bed for the development of(3)(the protocols that make the Internet possible).A major goal of the ARPAnet project was to increa the military’s command and control capability by enabling communication across a variety of physically (4)media,including satellites.An allied goal was to create a robust network:(5)withstanding outages,such as tho that might result from a nuclear exchange.ARPAnet met the objectives,but it also (6) its creators:It was found in short order that
routine是什么意思most ARPAnet urs (7) u the network for(8),such as electronic mail and discussion groups.Initially,the ARPAnet was available only to government rearch institutes and to universities holding Department of Defen(DoD)rearch contracts.In 1 983,ARPAnet was(9)into a high—curity military network(Milnet)and an ARPAnet that was recast as a rearch and development network.Although it formed the (10) of the Internet,it was decommissioned in 1 990.