Coastal barriers islands serve as coastal mainland's first line of defense against the impacts of severe storms and .
Arain
Berosion正確答案
Cenergy
Dtsumani
答案與詳解
為什麼答案是 B
erosion（侵蝕）是海岸線最典型的長期威脅，屏障島嶼正是擋住海浪沖刷、保護本土海岸的天然結構。
考點：語意重複考點：海岸侵蝕考點：語意不具體考點：海嘯混淆
載入中…
