航海英語潮汐與涌浪單項選擇題每日一練(2019.01.09)

來源：考試資料網(wǎng)

1 One of the causes of ocean currents is density differences in the water. This is true because （）.

2 You are anchoring in a river where the current is from one direction only.The best way to lay out two anchors is to have them（）.

3 Which statement is TRUE concerning equatorial tides（）.

4 When there are small differences between the heights of two successive high tides or two successive low tides，the tides are called（）.

5 You are docking a vessel．Wind and current are most favorable when they are（）.