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


------解决方案--------------------
de
------解决方案--------------------
d e