問題詳情
6. Since bird populations are indicators of ecosystem health, it is important to track their numbersto determine where _____ efforts are needed most.
(A) conservation
(B) exploitation
(C) destruction
(D) reduction
(E) deduction
參考答案
答案：A
難度：適中0.52381
統計：A(33),B(5),C(4),D(13),E(3)
用户評論
【菩提】評論
按標準答案 是選 A 翻譯為 保育的努力