中文说明：【个人见解】2012美赛A题几点见解
English Description：
[personal opinion] some opinions on question a of 2012 American Championship
[personal opinion] some opinions on question a of 2012 American Championship
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中文说明：【个人见解】2012美赛A题几点见解
English Description：
[personal opinion] some opinions on question a of 2012 American Championship个人见解.doc