阿摩線上測驗
5 Effective marketing requires a good understanding of customer ______.
(A)behave
(B) behavior
(C) behaved
(D) behaves
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統計： A(14), B(207), C(10), D(11), E(0) #3744879
統計： A(14), B(207), C(10), D(11), E(0) #3744879
