阿摩線上測驗
20 When tourism is badly managed, it can destroy a place. Coasts, for example, are extremely ____.
(A) voluntary
(B) vulnerable
(C) violent
(D) various
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統計： A(17), B(96), C(20), D(27), E(0) #1743404
統計： A(17), B(96), C(20), D(27), E(0) #1743404
