問題詳情

17. Before a new invention is mass-produced and put on the market, the manufacturer will make a survey of its sales____to see if it can make a profit.
(A)announcement
(B) potential
(C) cosmetics
(D) interaction

參考答案

答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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