单项选择题

Top and inner graduated borderlines of the chart are（）.

A.scales of latitude
B.scales of longitude
C.compass rose
D.source data

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单项选择题

You are on watch at night in clear visibility and the vessel has just been anchored.The first thing that you should do after the anchor has been let go is to（）.

A.stop the engines
B.turn off the running lights and turn on the anchor lights
C.take at least two bearings of prominent shore lights
D.lower the accommodation ladder and illuminate it

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Most Navigation System equipment is（）from the bridge, a unique location that allows for a centralized,safe and efficient management of ship navigation.

A.accessible
B.restricted
C.deterred
D.far away

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Precautionary areas and IMO adopted TSS have been established through the straits between Permatang Sedepa (One Fathom Bank) and the entrance to South China Sea in the vicinity of Horsburgh Light.In this sentence,“TSS”is the abbreviation of（）.

A.Traffic Selection Scheme
B.Traffic Solution Scheme
C.Traffic Separation Scheme
D.Traffic Separation system