What are two components of the OoS Integrated Services (IntServ) model? () ["link efficiency","admission control","classification and marking","shaping and policing","congestion avoidance using the RTP protocol","resource reservation using the RSVP protocol"]
农业形成与发展对自然和社会有哪些影响?
幼儿园数学教青主要是为幼儿提供有计划的,与数、量、形、时间和空间有关的学习活动。
蒸馏挥发酸时,一般用() ["直接蒸馏法","减压蒸馏法","水蒸汽蒸馏法","K-F法"]
地球上,每年发生的人们能感觉到的地震次数约有() ["10万次","100万次","50万次","200万次"]
细菌性腹泻最常见的病原菌是()