航海英語潮汐與涌浪單項(xiàng)選擇題每日一練(2019.01.20)

來源：考試資料網(wǎng)

1 A structure，usually made of stone，or cement pilings，which extends from the bank at approximately right angles to the current is called a（）.

2 Generally speaking，a ship steaming across the North Pacific from Japan to Seattle is likely to experience（）.

3 The Benguela Current flows in a（）.

4 Stand of the tide is that time when（）.

5 Set of current is（）.