大樣本，對照，當然這是最基本的。那個笑話實驗裏連對照也沒有，能不成笑話嗎？

來源: Diana-Sun 於 2016-03-30 17:54:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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