简述TMG常用的保障话音媒体流业务(RTP/RTCP)QoS的机制。
《铁路旅客运输规程》承运人的基本义务:对运送期间发生的旅客()予以赔偿。
A. 身体损害
B. 丢失车票
C. 精神
D. 好处费
()是陶行知奉行的格言,也是他在教师对待学生的师德方面所提倡的师德规范。
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the () (1) scavenging air is cooling the exhaust gases (2) exhaust cycle time is longer
A. (1) only
B. (2) only
C. both (1) and (2)
D. neither (1) nor (2)