阿摩線上測驗
16 Tourist deaths have been linked to altitude sickness, floods, and hiking ______ over the past decades at
Machu Picchu.
(A) incidents
(B) accidents
(C) occasions
(D) instances
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統計： A(2), B(77), C(10), D(6), E(0) #1543281
統計： A(2), B(77), C(10), D(6), E(0) #1543281