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？
简述文学阅读的功能。
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"]
引起机械性窒息的原因是（） ["肺脏广泛性病变","血液携氧不足","组织细胞利用氧不足","机械力作用后的外呼吸障碍"]
举例说明陆游诗的艺术成就表现在那几个方面？
