The Internet had its __70__ in a 1969 U.S. Defense Department computer network called ARPAnet, which __71__ Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to __72__ information. In 1983 the National Science Foundation (NSF), __73__ mission is to promote science, took over.
This new NSF network __74__ more and more institutional users, may of __75__ had their owm internal networks. For example, most universities that __76__ the NSF network had intracampus computer networks. The NSF network __77__ became a connector for thousands of other networks. __78__ a backbone system that interconnects networks, internet was a name that fit.
So we can see that the Internet is the wired infrastructure (基础设施) on which web __79__ move. It began as a military communication system, which expanded into a government-funded __80__ research network.
Today, the Internet is a user-financed system tying intuitions of many sorts together __81__ an “information superhighway.”
62. A．concise C．massive B．radical D．trivial
63. A．behaviors C．inventions B．endeavors D．elements
64. A．packed C．suppressed B．stuck D．bound
65. A．facilitated C．mobilized B．modified D．terminated
66. A．competitive C．exclusive B．comparative D．expensive
67. A．merges C．relays B．connects D．unifies
68. A．figures C．individuals B．personalities D．humans
69. A．and C．or B．yet D．while
70. A．samples C．origins B．sources D．precedents
71. A．stood by C．stood against B．stood for D．stood over