航海英語進(jìn)港指南單項(xiàng)選擇題每日一練(2019.01.15)

來源：考試資料網(wǎng)

1 When a pilot is on board to pilot the vessel the Letter （） must be hoisted．

2 Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）

3 Insufficient space between the hull and bottom in shallow water will prevent normal screw currents resulting in （）.

4 Before a Master relieves a Pilot of the conn，the （）.

5 On no account （）proceed without pilot in this water area．