何谓膜分离技术？在酶的生产中有何应用？
Which of the following routing protocols are less likely prone routing loops and network reachability problems when used in discontiguous networks?（） [" IGRP"," CDP"," OSPF"," RIP v1"," RIP v2"," EIGRP"]
发文字号
某建设工程的单价合同中，双方根据估算的工程量约定了一个合同总价，而在实际结算时原合同总价与合同各项单价乘以实际完成工程量之和不一致，则该工程价款结算以（）为准。 ["签订的合同总价","合同中各项单价乘以实际完成的工程量之和","实际完成的工程量乘以重新协商的各项单价之和","双方重新协商确定的单价和工程量"]
You have two Exchange Server 2010 servers that have the Client Access， Hub Transport， and Mailbox server roles installed.The servers are members of a database availability group （DAG）.You need to ensure that all users can access the Client Access server if a single server or service fails.What should you do？（） ["from DNS manager， create two new records for the Client Access servers.","from Failover Cluster Manager， create a new service named Client Access Server and assign a new IP address.","Install the Network Load Balancing feature on each server and assign a second IP address to each network adapter.","Deploy a hardware load balancer.Create a DNS record for the virtual IP address and configure a Client Access server array."]
简述公司法的精髓。
