問題詳情
【題組】47. What is the immediate change after 15 wolves were brought in?
(A) Plants grow taller and better
(B) Beavers have increased greatly
(C) The number of elk is reduced
(D) Cows and sheep are killed on farms
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)