問題詳情
9 Ecotourism is designed to____a natural area’s vulnerable ecosystem, so it should allow visitors
to experience the beauty of a destination without causing damage to it.
(A) disregard
(B) relocate
(C) compete
(D) safeguard
參考答案
答案：D
統計：A:0,B:3,C:0,D:11,E:0
難度：計算中