2. Adam Smith advocated_______ to produce produets more quickly.
(A)job specialization
(B)division of labor
(C) unity of direction
(D)centralization
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統計: A(1), B(1), C(0), D(0), E(0) #2788045
統計: A(1), B(1), C(0), D(0), E(0) #2788045