航海英語(yǔ)海洋學(xué)基本知識(shí)單項(xiàng)選擇題每日一練(2019.01.12)

來(lái)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（）.