填空题 1912年，（）出版了著作《心理学与工作效率》，被称为“工业心理学之父”。

问答题 简述当代西方国家政党政治的表现？

多项选择题 You are the network administrator for your company. A user is complaining that they are not able to access the network with the Junos Pulse client. You run a packet capture on the network interface to monitor the 802.1X authentication process. You notice that after the EAP- request/identity packet is received, and the supplicant responds with an EAP-response/identity packet, no further communication occurs for several seconds. What are three causes for this behavior? （）