To ensure quality, what is the maximum end-to-end transit time in milliseconds on a voice network?()
- A、 50
- B、 100
- C、 150
- D、 200
- E、 250
正确答案:C
答案解析:有

微信扫一扫手机做题
To ensure quality, what is the maximum end-to-end transit time in milliseconds on a voice network?()
微信扫一扫手机做题