航海英語航海圖書資料單項(xiàng)選擇題每日一練(2018.11.04)

來源：考試資料網(wǎng)

1 A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? （）

2 Particular care is needed when navigating in the vicinity of（）as very few of these features have been fully surveyed to modern standards to determine their correct position，full extent，or the least depth over them.

點(diǎn)擊查看答案

3 Charted depths are decreased（）2 meters．

點(diǎn)擊查看答案

4 A line of position derived from a loran reading is a section of a(n) （）.

點(diǎn)擊查看答案

5 From （） the mariner can know the data of tide．

點(diǎn)擊查看答案