阿摩線上測驗
13 What is the main idea of the passage?
(A) Tourism motivates the authority to grow more mangroves.
(B) Tourism has a pernicious effect upon our ecosystems.
(C) Tourism can raise our awareness of the importance of environmental protection.
(D) Tourism makes transportation easier than before.
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統計： A(3), B(74), C(27), D(4), E(0) #933179
統計： A(3), B(74), C(27), D(4), E(0) #933179
