在言論中，同一概念的內涵和外延要保持不變。如有變化，要作說明，這是初中課本裏的東東。

來源: FHZM 於 2014-08-03 08:27:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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