You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application consumes a Microsoft Windows Communication Foundation (WCF) service. The WCF service exposes the following method. 
You need to invoke the UpdateCustomerDetails method. Which code segment should you use?（）
- A、A
- B、B
- C、C
- D、D
正确答案:A
答案解析:有
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