在企业的总资产报酬率一定的情况下，权益乘数越大，股东的权益回报率就越高。
用于评判投资项目能力的财务分析指标主要是（）。 ["财务净现值","经济净现值","财务内部收益率","经济内部收益率","资产负债率"]
灭绝旋涡
Your network contains two DHCP servers. The DHCP servers are named DHCP1 and DHCP2. The internal network contains 1，000 DHCP client computers that are located on a single subnet. A routerseparates the internal network from the Internet. The router has a single IP address on the internal interface. DHCP1 has the following scope information. èStarting IP address： 172.16.0.1 èEnding IP address： 172.16.7.255 èSubnet mask： 255.255.240.0 You need to provide a fault-tolerant DHCP infrastructure that supports the client computers on the internal network. In the event that a DHCP server fails， all client computers must be able to obtain a valid IP address. How should you configure DHCP2？（） ["Create a scope for the subnet 172.16.0.0\/20. Configure the scope to use a starting IP address of 172.16.8.1 and an ending IP address of 172.16.15.254.","Create a scope for the subnet 172.16.0.0\/21. Configure the scope to use a starting IP address of 172.16.0.1 and an ending IP address of 172.16.15.254.","Create a scope for the subnet 172.16.8.0\/21. Configure the scope to use a starting IP address of 172.16.8.1 and an ending IP address of 172.16.10.254.","Create a scope for the subnet 172.17.0.0\/16. Configure the scope to use a starting IP address of 172.17.0.1 and an ending IP address of 172.17.255.254."]
勘验、检查笔录与鉴定结论，对它们的区别描述中，哪些描述是正确的？（） ["勘验、检查笔录由办案人员制作，鉴定结论则由办案人员指派或者聘请鉴定人制作","勘验、检查笔录是对所见情况的客观记录，鉴定结论的主要内容是科学的分析判断意见","勘验、检查笔录大多是解决一般性问题，鉴定结论则是解决案件中的专门性问题","勘验、检查笔录无需经过审查核定即可发挥其作用作为定案的根据，鉴定结论则需经过进一步的审查核定"]
简述轴流式水轮机的整体结构？
