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單項選擇題

Navigational warnings are published according to（）.

A.the designed area
B.the designated area
C.the indicated area
D.all area over the world

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單項選擇題

Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.

A.Notices to Mariners
B.Sailing Directions
C.List of Lights and Signals
D.Guide to Port Entries

單項選擇題

LOW AT 34N 135E ESLY SLWLY INTST NC．This description is most likely to be under the heading of（）.

A.GL WNG
B.GEN SYN
C.STM WNG
D.TY WNG

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