●In recent years,TCP／IP has also begun to be used by telephone companies to provide faster

时间：2021-05-05 07:25:42 解答: 89 次

●In recent years，TCP／IP has also begun to be used by telephone companies to provide faster,cheaper telephone (74) .

(74) A．transmitting

B．transmited

C．transfers

D．transmissions

正确答案：

D【解析】最近几年，TCP／IP已经被电信公司使用为用户提供更快速、更廉价的电话通信。

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