●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
●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
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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