请问这题目的正确答案为何?
请问这题目的正确答案为何?
烦劳各位帮忙了..感恩

A example.com developer is designing a multi-tier web application and discovers a need to log each incoming client request.
Which two patterns, taken independently, provide a solution for this problem? (Choose two)

A. Transfer Object
B. Service Locator
C. Front Controller
D. Intercepting Filter
E. Business Delegate
F. Model-View-Controller


[解决办法]
de
[解决办法]
d e