简要分析标底与概预算的主要区别。
简单地讲，系统分析中需要确定的逻辑模型就是指业务流程图。
继电保护装置的基本任务是什么？
煤矿对负有安全生产监督管理职责部门的监督检查人同依法履行监督检查职责，应当予以（）。 ["配合","拒绝","抵制"]
A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels？（） ["In a 6to4 tunnel， the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 address","In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the2002：1315：4463：1：：\/64 IPv6 address","In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：\/48IPv6 address","In a 6to4 tunnel， the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 address","In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：\/16IPv6 addre"]
简述双因素理论对管理的启示
