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12.( )若(2x+1)與(5Y-4)成反比,而且當x=1時,y=3,則當y=1時,x=?(A)3 (B) (C)16 (D)-3 。
問題詳情
12.( )若(2x+1)與(5Y-4)成反比,而且當x=1時,y=3,則當y=1時,x=?
(A)3
(B)
(C)16
(D)-3 。
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(1),D(1),E(0)
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