- 問題詳情:Imaginethereisaglassofwateronatableinfrontofhaswaterinitbutitisnotdoyoudescribetheglass?Doyousayitishalffullorhalfempty?Ifyousayhalffull,youmightbeanyousayhalfempty,youmightbetheopposite—apessimist.Optimismandpessimismrepresentyourgeneralatt...
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