Which of the following are shared distribution tree characteristics（） ["Memory requirements are higher for shared distribution tree than for source distributiontree.","Creates a tree from a central RP to all last-hoprouters.","Uses a rendezvous point.","An optimal path is created between each source router and each last-hoprouter.","Place（S，G）entry in each router’smulticast routing table.","Place（*，G）entry in a router’smulticast routing to table."]
简易程序的审判组织形式是（）。 ["独任制，由一个审判员审理、书记员担任记录","合议制","由一个审判员审判并记录","既可以适用独任制，也可以适用合议制"]
程甲本
无功优化进行调节的对象是（） ["变压器分接头","母线开关","电容器开关","电抗器开关"]
责任保险
相对强弱指数
