10.若x3-4x+3=(x-1)3+a(x-1)2+b(x-1),則2a-b=?
(A)–4
(B)4
(C)5
(D)7
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統計: A(0), B(5), C(2), D(9), E(0) #3207686
統計: A(0), B(5), C(2), D(9), E(0) #3207686