2. 外语
  3. The largest system serving e-mail messengers is the Internet, a ______ of millions of computers linked worldwide.

The largest system serving e-mail messengers is the Internet, a ______ of millions of computers linked worldwide.

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问题 The largest system serving e-mail messengers is the Internet, a ______ of millions of computers linked worldwide.
选项 A、unity
B、combination
C、network
D、connection
答案C
解析 network意为“网络，网状系统”，符合题意，如：Britain’s railway network is very complicated．英国的铁路网错综复杂。unity作“统一，团结”讲，如：The strength of a nation depends on its unity．国家的力量依靠团结。combination则意为“结合，联合”，如：All actors use a combination of these techniques．所有的演员综合运用这些演技。connection意为
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