情报检索和检索系统
Refer to the exhibit. Both routers have been configured as VoIP gateways. They must also support traditional telephony devices to connect to analog telephones. Which two configuration changes would correctly support the voice requirements?（） ["on each router， under the dial-peer voice 1 pots configuration， add the port fa0\/0 command","on each router， under the dial-peer voice 1 pots configuration， add the port 1\/0\/0 command","on each router， configure dial-peer voice 1 as a voip connection and configure dial-peer voice 2 as a pots connection","under the dial-peer voice 1 pots configuration， change the destination pattern of 1111 to 2222 on the R1 router， and 2222 to 1111 on the R2 router","under the dial-peer voice 2 voip configuration， change the destination pattern of 1111 to 2222 on the R1 router， and 2222 to 1111 on the R2 router","under the dial-peer voice 2 voip configuration， change the destination target address of 10.2.2.2 to 10.1.1.1 on the R1 router， and the destination target address of 10.1.1.1 to 10.2.2.2 on the R2 router"]
简述生物活性物质分离纯化的主要原理。
“时差利息论”把利息看成是人们对商品在不同时期的不同评价而产生的价值差异。（）
现代广告设计的中心是（） ["企业文化","企业整体营销活动","消费者和用户","广告策划"]
上计制度
