传统电话采用的是电路交换方式,而IP电话采用的是()方式,因而大大提高了带宽利用率。
分组交换
暂无解析
Doyourememberthebuilding____flewaredflagalltheyearround?
Mario:Yourbelovedteacherhasarrivedhere,Nina.
Nina:I______she______untiltomorrow.
Theradiois________astrangesignal.What’swrongwithit?
The( )ofyellowandblueformgreen.
Howlonghaveyou____?