Which PPP subprotocol negotiates authentication options?（） ["NCP","ISDN","SLIP","LCP","DLCI"]
正常分娩预防产后出血，使用宫缩剂应在：（） ["胎头拨露后","抬头着冠后","胎儿前肩娩出后","胎儿娩出后","胎头拨露后不久"]
Which of the following are functions that are often provided by an ITSP but are not typically provided by the PSTN？（） [" QoS"," call setup and teardown"," call routing"," call supervision"," audio signal compressio"]
轿厢内应设停电应急照明，在正常照明电源中断的情况下能（）。 ["替代正常照明；","长时照明；","人工投入；","自动投入"]
根据工程量清单计价规范的规定，其他项目费用的招标人部分包括（）。 ["预留金和材料购置费","预留金和总承包服务费","预留金和零星工作项目费","总承包费用和零星工作项目费"]
人文社会科学
