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Giveninthe△ABC,a,b,carethreesidesofthetriangle,and,then...
問題詳情:Giveninthe△ABC,a,b,carethreesidesofthetriangle,and,then∠AisA.acuteangle                    B.rightangle  (英漢詞典acuteangle:鋭角;obtuseangle:鈍角)    C.obtuesangle      ...
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