航海英語地文航海單項(xiàng)選擇題每日一練(2019.01.07)

來源：考試資料網(wǎng)

1 Which of the following are data layer categories to be displayed on ECDIS（）．

2 When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.

3 When using a buoy as an aid to navigation which of the following should be considered?（）

4 Which statement concerning current is TRUE（）.

5 What is an ebb current（）.