A Next Generation Network(NGN) is a (上题选择) network ,which is able to provide Telecomun

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A Next Generation Network(NGN) is a (上题选择) network ,which is able to provide Telecomunication Services ti users and to make use of multiple broadband, QoS-enable transport technologies and in which service-related functions are () of the underlying transport-related technologies. A.dependent B.independent C.related D.depend 请帮忙给出正确答案和分析,谢谢!
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