问题描述：
-When was our party founded?-it was founded_ A.on October 1,1948 B.in May 1922 C.
-When was our party founded?
-it was founded_
A.on October 1,1948 B.in May 1922 C.on july 1,1912
-When was our party founded?
-it was founded_
A.on October 1,1948 B.in May 1922 C.on july 1,1912
问题解答：
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