Did not read this before send my post, which is the same.

来源: wxcfan123 于 2011-07-15 16:41:21 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (0 bytes)
回答: Assume f(x)'s coefficients are all real; 由 乱弹 于 2011-07-13 16:56:53
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