阿摩線上測驗
12. Which photo least illustrates the principles of ecotourism?
(A) photo A
(B) photo B
(C) photo C
(D) photo D
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統計： A(2), B(8), C(2), D(7), E(0) #2160226
統計： A(2), B(8), C(2), D(7), E(0) #2160226