航海英語航海圖書資料單項選擇題每日一練(2018.12.18)

來源：考試資料網(wǎng)

1 Chart correction information is NOT disseminated through the （）.

2 In which source could you find the number of a chart for a certain geographic area?（）

3 After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.

4 An inflatable liferaft is hand-launched by（）.

5 The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.