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Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. int
Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. int
admin
2017-11-14
26
问题
Some historians say that the most important contribution of Dwight Eisenhower’ s presidency (总统任期) in the 1950s was the U.S. interstate highway system. It was a【C1】______ project, easily surpassing the scale of such previous human【C2】______ as the Panama Canal. Eisenhower’s interstate highways【C3】______ the nation together in new ways and【C4】______ major economic growth by making commerce less【C5】______ . Today, an information superhighway has been built—an electronic network that【C6】______ libraries, corporations, government agencies and【C7】______ . This electronic superhighway is called the Internet,【C8】______ it is the backbone (主干) of the World Wide Web.
The Internet had its【C9】______ in a 1969 U. S. Defense Department computer network called ARPAnet, which【C10】______ Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to【C11】______ information. In 1983 the National Science Foundation (NSF) ,【C12】______ mission is to promote science, took over.
This new NSF network【C13】______ more and more institutional users, many of【C14】______ had their own internal networks. For example, most universities that【C15】______ the NSF network had intra-campus computer networks. The NSF network【C16】______ became a connector for thousands of other networks.【C17】______ 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【C18】______ move. It began as a military communication system, which expanded into a government-funded【C19】______ research network.
Today, the Internet is a user-financed system tying institutions of many sorts together【C20】______ an " information superhighway".
【C16】
选项
A、moreover
B、however
C、likewise
D、then
答案
D
解析
副词辨义。上句提到,连接到NSF网络上的大多数大学都拥有校园内部的计算机网络。本句承接上句的意思,NSF网络就成为连接成千上万个其他网络的网络。所以使用表示承接关系的副词then符合句意,D项为本题正确答案。moreover意为“而且,此外”,表示递进关系;however意为“然而,可是”,表示转折关系;likewise意为“同样地”,表示类比关系。这三个副词均不能表示承接关系,所以均可以排除。
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0
考研英语一
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