简述计算机集成制造系统的组成。
什么是计算机网络？
Which two of these are advantages of placing the VPN device in the DMZ on the firewall?（） [" fewer devices to manage"," moderate-to-high scalability"," stateful inspection of decrypted VPN traffic"," increased bandwidth with additional interfaces"," decreased complexity as traffic is filtered from the firewall"]
关于重型肝炎的治疗，下面哪一项是正确的？（） ["并发肝肾综合征者应尽早行血液透析治疗","应给予高蛋白饮食","肝移植后不会出现病毒性肝炎复发","人工肝支持系统的疗效持久","胆系感染首选头孢菌素类抗生素"]
地球的外部圈层有（）。 ["1个","2个","3个","4个"]
分析下列词语意义派生的方式。
①看：本义指使视线接触人或物，派生义指访问。
②香花：本义指有香味的草，派生义指健康的文艺作品。
