单项选择题
A.true directions B.compass error C.deviation D.magnetic directions
Navigational warnings are published according to（）.A.th...
单项选择题Navigational warnings are published according to（）.
A.the designed area B.the designated area C.the indicated area D.all area over the world
Many navigational warnings are of a temporary nature，bu...
单项选择题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
LOW AT 34N 135E ESLY SLWLY INTST NC．This description is...
单项选择题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
