阿摩線上測驗
41. Which of the following as effects if exotic pests on forest ecosystems is not
mentioned in the passage?
(A)decreased vitality in trees
(B) defoliation of trees
(C) changes in forest structure
(D)transport of nutrients
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統計： A(13), B(3), C(4), D(29), E(0) #3103913
統計： A(13), B(3), C(4), D(29), E(0) #3103913
