You are working with a Windows Communication Foundation (WCF) client application that has a generated proxy named SampleServiceProxy.When the client application is executing, in line 04 of the following code, the channel faults (Line numbers are included for reference only.) 01 SampleServiceProxy proxy = new SampleServiceProxy(); 02 try 03 { 04 proxy.ProcessInvoice(invoice); 05 } 06 catch 07 { 08 if(proxy.State == CommunicationState.Faulted) 09 { 10 ... 11 } 12 } 13 proxy.UpdateCustomer(customer);You need to return proxy to a state in which it can successfully execute the call in line 13.Which code segment should you use at line 10?（） [" proxy.Close();"," proxy = new SampleServiceProxy();"," proxy.Abort();"," proxy.Open()"]
西罗马帝国灭亡的历史意义
执行一条指令可分哪几个基本操作？
山谷风
定额
伟晶岩矿床多形成于何种大地构造环境？其分布有何规律？
