Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

The company should establish and maintain procedures to control all documents and date which are relevant to（）.

Manoeuvring information can not be obtained from（）.

The mean draft of a ship is the draft（）.

The circulation around a low pressure center in the Northern Hemisphere is（）.

Berthing means bringing a vessel to her berth until（）.

The helm command PORT TWENTY means（）.

Before any loading takes place any signs of the previous cargo should do（）.

When steering by autopilot,how often should the steering be checked?（）

It is dangerous for vessels without the operational radar（）the estuary.