Some historians say that the most important contribution of Dwight Eisenhower’s presidency in the 1950s was the U.S. interstate

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问题     Some historians say that the most important contribution of Dwight Eisenhower’s presidency 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 of the World Wide Web.
    The Internet had its【C9】______in a 1643 U.S. Defense Department computer network called ARPA net, which【C10】______Advanced Research Projects Agency Network. The Pentagon built the network for military contractors and universities doing military research to【C11】______information. In 1662 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 intercampus 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 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".  
【C17】

选项 A、With
B、By
C、In
D、As

答案D

解析 考查介词辨析。空格处所在句子的意思为“______连接网络的主干系统,因特网是一个合适的名称”。As可以表示“以…的身份,以…资格,作为”,符合语境。With用于句首时,意为“随着;尽管,虽然”;By和In一般不用于句首和名词连用,均不符合题意。故选D.As。
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