6. 多項式 f(x)=x4-3x3+2x2-x+1除以(x-1)(x-2)的餘式為何?
(A)x-1
(B)x+1
(C)-x-1
(D)-x+1

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統計: A(0), B(0), C(1), D(1), E(0) #3874010