世界第四大能源是（） ["天然气","煤炭","石油","生物质能"]
现代公共政策制定体制是各种权力因素相互影响、相互制约的完备的科学体系，一般有以下构件（）。 ["中枢系统","咨询系统","信息系统","执行系统"]
符号代表（）。 ["二极管","三极管","稳压管","电阻"]
For the following items ，which one can be used to authenticate the IPsec peers during IKE Phase 1？（） ["pre-shared key","integrity check value","XAUTH","Diffie-Hellman Nonce"]
What three pieces of information can be used in an extended access list to filter traffic? (Choose three.)（） ["protocol","VLAN number","TCP or UDP port numbers","source switch port number","source IP address and destination IP address","source MAC address and destination MAC addre"]
根据访谈问题的设计可以将访谈分为标准化访谈、（）和非标准化访谈。
