【多选题】What are three factors used to determine the amount of bandwidth that is required for a single VoIP call?()
D.
packet overhead (IP/UDP/RTP)
F.
total number of simultaneous calls that are allowed
【单选题】在敏感性分析中,临界点是指项目允许不确定因素向不利方向变化的( )。
【判断题】A single call program code (M98) can only call a subprogram once.
【单选题】There ______ PE lessons today. [ ]