散文诗最初由谁开始写作的？（） ["爱伦坡","屠格涅夫","波德莱尔","魏尔伦"]
In multicast network how to select DR？ and what is the order？
肺活量是反映呼吸机能的主要指标之一，成年男子的肺活量约为（） ["3000~3500毫升","3500~4000毫升","4000~4500毫升","4500~5000毫升"]
如果下列情况属实，哪一项是支持外周情绪理论的？（） ["人们在控制面部肌肉做出笑容时并不能体会到使人发笑的情绪","大脑皮质某特殊位置受损的病人不能体验到情绪","每一种情绪都有不同的生理唤醒模式","在同样的生理唤醒状态下，不同文化的人会体验到不同的情绪"]
What functions do routers perform in a network?（） [" packet switching"," access layer security"," path selection"," VLAN membership assignment"," bridging between LAN segments"," microsegmentation of broadcast domai"]
球粒
