05. To get rid of her weight, the heaviestteenager in England, MalissaJones, underwent a gastric ______ operation and had lost 100 kiloswithin a year. But she laterdevelopedanorexia. (A) mutation (B) bypass (C) temblor (D) charisma
Somehistorian say that the mostimportantcontribution of DwightEisenhower’s presidency (总统任期) in the 1950s was the U.S. interstatehighwaysystem. It was a __62__ project, easilysurpassing the scale of suchprevioushuman __63__ as the PanamaCanal. Eisenhower’s interstatehighways __64__ the nationtogether in new ways and __65__ majoreconomicgrowth by makingcommerceless __66__. Today, an informationsuperhighway has beenbuilt—an electronicnetworkthat __67__ libraries, corporations, governmentagencies and __68__. Thiselectronicsuperhighway is called the Internet, __69__ it is the backbone (主干) of the WorldWide Web.
The Internet had its __70__ in a 1969 U.S. DefenseDepartmentcomputernetworkcalledARPAnet, which __71__ AdvancedResearchProjectsAgencyNetwork. The Pentagonbuilt the network for militarycontractors and universitiesdoingmilitaryresearch to __72__ information. In 1983 the NationalScienceFoundation (NSF), __73__ mission is to promotescience, tookover.
This new NSF network __74__ more and moreinstitutionalusers, may of __75__ had their own internalnetworks. For example, mostuniversitiesthat __76__ the NSF network had intracampuscomputernetworks. The NSF network __77__ became a connector for thousands of othernetworks. __78__ a backbonesystemthatinterconnectsnetworks, internet was a namethat fit.
So we can see that the Internet is the wiredinfrastructure (基础设施) on which web __79__ move. It began as a militarycommunicationsystem, whichexpandedinto a government-funded __80__ researchnetwork.
Today, the Internet is a user-financedsystemtyingintuitions of manysortstogether __81__ an “informationsuperhighway.” 【題組】72. (A)exchange (C)switch (B)bypass (D)interact