78. What dilemma do local, state and federal agencies face?
(A)To preserve the beach or not.
(B)To face climate change or not.
(C) To study the weather change or not.
(D)To prevent coastal flooding or not.
詳解 (共 2 筆)
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翻譯參考: 海洋上海灘的爆炸性海浪長期...
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