43. What might NOT be a practice based on the principles of ecotourism?
(A) Leave no trace by bringing back all the garbage with you while mountain climbing.
(B) Have total quantity control at world heritage sites.
(C) Mandate consumption of souvenirs at local gift shops.
(D) Make voluntary donations to local tourism organization.
詳解 (共 1 筆)
未解鎖
(A) Leave no trace b...