Your company has a main office and two branch offices that are connected by WAN links. The main office runs the DNS service on three domain controllers. The zone for your domain is configured as an Active Directory-integrated zone. Each branch office has a single member server that hosts a secondary zone for the domain. The DNS servers in the branch offices use the main office DNS server as the DNS Master server for the zone. You need to minimize DNS zone transfer traffic over the WAN links. What should you do？（） ["Decrease the Retry Interval setting in the Start of Authority （SOA） record for the zone","Decrease the Refresh Interval setting in the Start of Authority （SOA） record for the zone","Increase the Refresh Interval setting in the Start of Authority （SOA） record for the zone","Disable the netmask ordering option in the properties of the DNS master server for the zone."]
如何使删除的文件不放入回收站？
发生医疗器械不良事件的原因非常复杂，有产品固有风险中的设计缺陷，有（）、（），有产品使用说明书上的错误，有上市前研发的局限性等。
简述人类意见沟通的特点。
《安全生产法》规定，生产、经营、储存、使用危险物品的车间、商店、仓库与员工宿舍在同一座建筑内，或者与员工宿舍的距离不符合安全要求的，应当采取什么措施？
深井水泵运行时出水，但流量减小的原因中哪些？
