更多"[单选题]The two letter code of Alitali"的相关试题:
[单选题] In the letter, she didn’t tell me whether he was still _____.
A. alive
B. lived
C. lively
D. live
[单选题] Two vessels are approaching each other near head on．What action should be taken to avoid collision ________．
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
[单选题] The shortest distance between any two points on esrth defines a _____.
A. small circle
B. great circle
C. rhumb line
D Hyperbola (双曲线)
[单选题] The two most effective generating forces of surface ocean currents are ______.
A. temperature and salinity differences in the water
B. wind and density differences in the water
C. water depth and underwater topography
D. rotation of the Earth and continental interference
[单选题] After writing the letter, she put it in the _( )_ and sealed (封) it.
A. cover
B. envelope
C. sheet
D. box
[多选题]Concurring wills attributable to two or more parties may be expressed:
A. in writing.
B. verbally.
C. through conduct.
D. by silence.
[单选题]Air conditioning systems fall into two main classes and central systems.
A.individual unit systems
B.flexible unit systems
C.rotary unit systems
D.reciprocating unit systems
[单选题] The two courses of action if the underwater hull is severely damaged are to plug the openings or to ______．
A.Establish and maintain flooding boundaries
B.Dewater the compartment
C.Secure power to the compartment
D.Ballast to maintain even keel
[单选题] The IALA buoyage system is divided into two categories:________.
A.The buoy system and the lighthouse system
B.The central buoy system and the side buoy system
C.The lateral system and the cardinal system
D.The stripe system and the band system
[单选题] The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for____.
A.The sun to be at the opposite side of the moon
B.The moon to be at the opposite side of the earth
C.The moon to be at its apogee
D.The sun and the moon to be on the same side
[单选题]In two-stroke engine the crankshaft is connected withby means of the connecting rod.
A.the stuffing box
B.the piston
C.the crosshead bearing
D.guide plate
[单选题] Two barges are being pushed ahead by a tugboat．Which statement is TRUE concerning lights on the barges ________．
A.Each vessel should show sidelights
B.Each vessel should show at least one white light
C.The barges should be lighted as separate units
D.The barges should be lighted as one vessel
[单选题] Which one of two crossing power-driven vessels has the right of way in a fog?
A. Both vessels.
B. Neither vessel.
C. The stand-on vessel.
D. The giving-way vessel.
[单选题] I had been looking for the book for two days _____ I found it at last.
A. until
B. when
C. before
D. while
[单选题]The main bearings,,each consist of two shells.
A.they support the crankshaft
B.they drive the crankshaft
C.which support the crankshaft
D.which drive the crankshaft
[单选题]In each cylinder cover of two-stroke engine there are two or three holes for
A.the exhaust valve
B.the safety valve
C.the indicator cock
D.all of the above
[单选题] There are two classes of vessels which，to the extent necessary to carry out their work，do not have to comply with the rule regarding traffic separation schemes．One of these is a vessel ______．
A.engaged in fishing in a traffic lane
B.servicing a submarine cable
C.towing another
D.engaged on pilotage duty
[单选题]After two months they__in the countryside.
A.used to live
B.got used to live
C.used to living
D.got used to living
[单选题] I am sorry _____ written you a letter at the time.
A. to have not
B. to not have
C. not to have
D. not having
