In which integration method is an IPV6 packet encapsulated within an IPV4 protocol?() [" proxy."," dual-stack"," tunneling"," dot1q"]
金属相“()”叫做“稳定区”。 ["稳定的区域","稳定的介质","稳定的体系","稳定的角度"]
Which two IntServ functions are required on a router?() ["admission control","DSCP classification","monitoring","marking","scheduling"]
常用的数比形式是() ["1:2~1:4","12~1:6","1:2~1:8","1:2~1:9"]
简述幼儿游戏的虚构性特征。
8个月的拉拉饿了,妈妈还没回来,拉拉开始哭闹,爸爸就给她放了一首巴赫的钢琴曲,拉拉安静下来,可是3分钟后他又开始哭闹,爸爸就换了贝多芬的《命运》,拉拉又安静下来。请用习惯化和去习惯化的概念解释拉拉的反应。