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You are developing a data contract for a Windows Communication Foundation (WCF) service. The data in the data contract must participate in round trips. Strict schema validity is not required. You need to ensure that the contract is forward-compatible and allows new data members to be added to it. Which interface should you implement in the data contract class?（）

单选题
2022-07-11 22:32
A、ICommunicationObject
B、IExtension
C、IExtensibleObject
D、IExtensibleDataObject
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正确答案
D
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标签： MCTS(70-513)
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【参考范例九】Education Are you with a job or are you studying?
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