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单选题
A developer is designing a multi-tier application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition, the application needs to find, in a transparent manner, the heterogeneous business components used to service the client’s requests. Which design patterns, working together, address these issues?()
A
Business Delegate and Transfer Object
B
Business Delegate and Service Locator
C
Front Controller and Business Delegate
D
Intercepting Filter and Transfer Object
E
Model-View-Controller and Intercepting Filter
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Front ControllerC
Composite ViewD
Intercepting FilterE
Business DelegateF
Chain of Responsibility
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CommandB
Transfer ObjectC
Service LocatorD
Session FacadeE
Business Delegate
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View HelperB
Front ControllerC
Composite ViewD
Intercepting FilterE
Business Delegate
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