Vessels should be manned（）duly qualified officers and crew adequate（）ensure the safety of navigation.

A . so B . that C . this D . same

A . much than B . more than C . many than D . lot tha

A . difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraph B . distance the vessel has actually run through the water since a change of speed was ordered C . distance the vessel will run between taking action to stop her and being stationary in the water D . speed at which a vessel should proceed to ensure that she will run a predetermined distance，once her engines have been stopped

A . smoke B . rate of temperature rise C . ionized particles D . all of the above

A . astern and the victim just off the bow B . ahead and the victim just off the bow C . just off the bow and the victim to windward D . just off the bow and the victim to leeward

A . can be observed visually B . can be observed by radar C . can be located on the radar D . can be heard

A . A centerline crane can never be operated in tandem B . One crane is able to work one end of two adjacent hatches C . These cranes are more economical and weigh less than outboard-mounted cranes D . One crane is able to work both sides of the shi

A . in trays constructed of material that is resistant to the electrolyte B . so as to prevent movement when the vessel pitches and rolls C . in a well ventilated area D . All of the above

A . bow mooring／stern line B . forward spring／after spring C . forward breast rope／forward spring D . slip rope／stern line

A . closed, and no leakage permitted across the shaft packing B . closed, and only slight leakage permitted across the shaft packing C . open, and no leakage permitted across the shaft packing D . open, and only slight leakage permitted across the shaft packing

A . those with diesel engines B . all those with gasoline engines C . those with large engines only D . None of the above

A . the main source of energy B . emergency source of electrical power C . the reserve source of energy D . all of above

A . one blast，4 to 6 seconds in duration B . three blasts，4 to 6 seconds in duration C . one continuous blast until you are able to see around the bend D . one blast，8 to 10 seconds in duratio

A . besides B . excepted C . otherwise D . other tha

A、possible B、practicable C、impossible D、probably

A . no matter where they are and what time it is B . at scheduled time and in major ocean regions C . at fixed time and position D . when they get permissio

A . The first vessel to sight the other should give way B . The vessel making the slower speed should give way C . Both vessels should alter course to starboard D . Both vessels should alter course to port

A . The lifeboat is lowered to near the water，loaded with the allowed capacity，lowered into the water until afloat，then released from the falls B . The lifeboat is loaded with the allowed capacity，lowered into the water until afloat，then released from the falls C . The lifeboat is lowered into the water until afloat，loaded with the allowed capacity，then released from the falls D . The lifeboat is lowered to near the water，loaded with the allowed capacity，then released from the fall

A . acquiring B . with possession of C . required for D . in possession of

A . by B . in C . with D . to

A . Prohibit to anchor B . Prohibited to anchor C . Prohibited from anchor D . Prohibited from anchoring

A．kept his goose B．cut his goose gently C．cut his goose a little open D．fed goose on gold