A.網(wǎng)絡(luò)同步 B.節(jié)點(diǎn)同步 C.傳輸信道同步 D.無線接口同步
A.背景類(Background) B.交互類(Interactive) C.流類(Streaming) D.會(huì)話類(Conversational)
A.36 B.42 C.48 D.64