问题
单项选择题
互联网的基本含义是( )。
A．计算机与计算机互联
B．计算机与计算机网络互联
C．计算机网络与计算机网络互联
D．国内计算机与国际计算机互联
答案
参考答案：C
解析： 所谓互联，是指世界上众多的计算机网络的互联。例如，因特网是一个互联网，它是将提供不同服务的，使用不同技术的、具有不同功能的物理网络互联起来而形成的。
搜题请搜索小程序“爱下问搜题”
互联网的基本含义是( )。
A．计算机与计算机互联
B．计算机与计算机网络互联
C．计算机网络与计算机网络互联
D．国内计算机与国际计算机互联
参考答案：C
解析： 所谓互联，是指世界上众多的计算机网络的互联。例如，因特网是一个互联网，它是将提供不同服务的，使用不同技术的、具有不同功能的物理网络互联起来而形成的。
| It may be necessary, in order that .future (51) can enjoy clean air, that more of the (52) is borne by long-term central government fund．As air pollution varies enormously from place to place and can, indeed, be very local, it may also be necessary for the central government to (53) money so that local authorities can (54) special local problems. That these can be significant was shown by the report made in 1970 (55) behalf of the London Boroughs Association. This (56) that in central London since 1958 smoke concentrations have decreased by 80 percent, whereas sunshine has increased by 70 percent and winter visibility has (57) threefold, There have been (58) in mortality and hospital admissions (59) with air pollution and in the response to it of bronchitis, as well as clear if less documented increases in plant types and bird (60) n the cities. |
A．associated
B．concerned
C．tied up
D．involved