問題詳情

3. There are four stages in the life ______ of a product, including introduction, growth,peak, and its fall in sales.
(A) signal
(B) cycle
(C) union
(D) arrival

參考答案

答案：B
難度：非常簡單1
統計：A(0),B(3),C(0),D(0),E(0)