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- 31The shortest distance between any two points on earth defines a ______.
A.small circle
B.great circle
C.rhumb line
D.hyperbola
开始考试练习点击查看答案 - 32When a buoy marks a channel bifurcation(分支), the preferred channel is NOT indicated by ______.
A.the shape of an unlighted buoy
B.the light color of a lighted buoy
C.the color of the topmost band
D.whether the number is odd or even
开始考试练习点击查看答案 - 33Uncharted lights, fog signals and radar beacon transmissions may be ______ near the station.
A.encountered
B.met
C.contacted
D.seen
开始考试练习点击查看答案 - 34Spring tides occur ______.
A.when the moon is new or full
B.when the moon and sun have declination of the same name
C.only when the moon and sun are on the same sides of the earth
D.at the beginning of spring when the sun is over the equator
开始考试练习点击查看答案 - 35The set of the ocean current is caused by ______.
A.density differences of the water
B.rotation of the earth
C.direction of primary circulation of air
D.all of the above
开始考试练习点击查看答案 - 36You are docking a vessel.If possible,you should ______.
A.go in with the current
B.go in against the current
C.approach the dock at a 90Deg angle and swing to
D.at the beginning of spring when the sun is over the equator
开始考试练习点击查看答案 - 37All the holds to be loaded with grain must be swept ______ commencement of loading.
A.cleanly/during
B.clear/meanwhile
C.clean/between
D.clean/prior to
开始考试练习点击查看答案 - 38Stop ______ the derrick at once,the gooseneck is bent.
A.to use
B.to operate
C.maneuvering
D.using
开始考试练习点击查看答案 - 39The actual amount of cargo loaded depends upon ______.
A.the broken stowage listed
B.the broken stowage calculated
C.the broken stowage given
D.the actual broken stowage
开始考试练习点击查看答案 - 40The Routing System which aimed at reducing the risk of casualties is called as ______.
A.Traffic Separation Schemes
B.Recommended tracks
C.Precautionary areas
D.Inshore traffic zones
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