[问答题] 简述当代课程设计表现的趋势。

Select the action that results from executing these commands.（）Switch(config-if)# switchport port-securitySwitch(config-if)# switchport port-security mac-address sticky ["A dynamically learned MAC address is saved in the startup-configuration file.","A dynamically learned MAC address is saved in the running-configuration file.","A dynamically learned MAC address is saved in the VLAN database.","Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.","Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received."] 1660SM4.X版本设备中的矩阵单元内，HPC能完成（）个等效的STM1连接，LPC能完成（）个等效的STM1连接 ["192","96","64","32"] 教育公共关系的传播方式有（）。 ["个体传播","组织传播","群体传播","大众传播"] 铁路运输企业应该保持车站和车厢内清洁卫生，提供饮用开水，做好列车上的饮食供应工作、（） 欧洲人承认战争，反思战争的原因是：（） ["羞耻文化","经济因素","宗教","民族意识"] 简述当代课程设计表现的趋势。