如何控制微生物发酵产酶的工艺条件？ 正确。 错误。
You work as an application developer at Certkiller .com. You have recently created an application domain for Certkiller .com. A few weeks later you are asked to retrieve information from this application domain， which is the current application domain. What can you do to achieve this objective？（） 正确。 错误。
A公司涉及一起诉讼，根据以前的经验及公司所聘请律师的意见判断，该公司在该诉讼中胜诉的可能性有30％，败诉的可能性有70％。如果败诉，A公司将要支付100万元的赔偿款。根据规定，A公司应于年末资产负债表中确认负债金额（）。 正确。 错误。
A Windows Communication Foundation (WCF) solution uses the following contracts. (Line numbers are included for reference only.) 01 [ServiceContract(CallbackContract=typeof(INameService))] 02 public interface IGreetingService 03 { 04 [OperationContract] 05 string GetMessage(); 06 } 07 [ServiceContract] 08 public interface INameService 09 { 10 [OperationContract] 11 string GetName(); 12 } The code that implements the IGreetingService interface is as follows: 20 public class GreetingService : IGreetingService 21{ 22 public string GetMessage() 23 { 24 INameService clientChannel = OperationContext.Current.GetCallbackChannel(); 25 string clientName = clientChannel.GetName(); 26 return String.Format("Hello {0}", clientName); 27 } 28 } The service is self-hosted. The hosting code is as follows: 30 ServiceHost host = new ServiceHost(typeof(GreetingService)); 31 NetTcpBinding binding = new NetTcpBinding(SecurityMode.None); 32 host.AddServiceEndpoint("MyApplication.IGreetingService", binding, "net.tcp//localhost:12345"); 33 host.Open(); The code that implements the lNameService interface is as follows: 40 class NameService : INameService 41 { 42 string name; 43 public NameService(string name) 44 { 45 this.name = name; 46 } 47 public string GetName() 48 { 49 return name; 50 } 51 } Currently, this code fails at runtime, and an InvalidOperationException is thrown at line 25. You need to correct the code so that the call from the service back to the client completes successfully. What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)（） 正确。 错误。
跨度为10m的预制板脱模起吊时混凝土强度允许值应达到（）。 正确。 错误。
电路交换方式中不需要在两个通信节点之间建立通路。
