A.soft clay
B.hard mud
C.very soft mud
D.sand
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A.immediately after restoring vital services
B.immediately
C.following control of flooding
D.following establishment of fire boundaries
A.prevailing westerlies
B.horse latitudes
C.trade winds
D.subpolar low pressure belts
A.Weather side
B.Leeward side
C.Upwind side
D.Crosswind side
A.When at anchor，the pilot vessel is only required to sound anchor signals
B.The identification signal must be sounded any time the pilot vessel is underway
C.The pilot vessel may only sound the identity signal when making way
D.All of the above
A.Greenwich celestial meridian
B.hour circle of the body
C.local celestial meridian
D.vertical circle of the body
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Chart legends printed in capital letters show that the associated landmark is（）.
Complete information on weather broadcasts throughout the world is contained in（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Denebola is found in what constellation?（）
Coast Pilots and navigational charts are kept corrected and up-to-date by using the（）.
Chart legends which indicate a conspicuous landmark are printed in（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Clouds form（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Consideration should be given in planning for the mooring orientation in a new location so that in adverse weather a crane is available to off-load the supply vessel on what side of the unit?（）