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航海英語海洋學基本知識單項選擇題每日一練(2019.01.12)

來源：考試資料網(wǎng)

1 The direction of the southeast trade winds is a result of the（）.

2 The ocean bottom that extends from the shoreline out to an area where there is a marked change in slope to a greater depth is the（）.

3 A snag or other underwater obstruction may form a（）.

4 The height of a wave is the vertical distance（）.

5 The direction of the surface wind is（）.