实验研究
Your company has a main office and a branch office. The main office has a domain controller named DC1 that hosts a DNS primary zone. The branc office has a DNS server named SRV1 that hosts a DNS secondary zone. All client computers are configured to use their local server for DNS resolution. You change the IP address of an existing server named SRV2 in the main office. You need to ensure that SRV1 reflects the change immediately. What should you do?（） ["Restart the DNS server service on DC1.","Run the dnscmd command by using the \/zonerefresh option on DC1.","Run the dnscmd command by using the \/zonerefresh option on SRV1.","Set the refresh interval to 10 minutes on the start of authority (SOA) record."]
学生们为了共同目的在一起学习和工作或者完成某项任务的过程是（） ["竞争","合作","讨论","对话"]
关于育婴师职业与家长教养的关系，阐述正确的是（）。 ["育婴师的工作就是替代父母的职责","育婴师要全权负责0～3岁婴儿的生活和教育","育婴师的工作是在日常生活中，扶持、协助父母的教养","育婴师对婴儿负有教养的主要责任"]
在我国的进出口业务中，出口结汇的方法有（）。 ["收妥结汇","买单结汇","定期结汇","预付结汇"]
羊毛的强度
