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8.( )若 x:z=2:3,y:z=5:3,則下列敘述何者錯誤?(A) 2x=5y=3z (B) ==(C) y=x+z (D) (x+y):(y+z)=7:8
問題詳情
8.( )若 x:z=2:3,y:z=5:3,則下列敘述何者錯誤?
(A) 2x=5y=3z
(B)
=
=
(C) y=x+z
(D) (x+y):(y+z)=7:8
參考答案
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2. 二次函數 ,若 n > 0,則其圖形可能為下列何者?(A) (B)(C) (D)
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