單項(xiàng)選擇題

A stand-on vessel in a crossing situation is allowed to take action when （）.

A.on a collision course
B.the vessels will pass within one mile
C.it becomes apparent to her that the give-way vessel is not taking appropriate action
D.the relative speed of the vessels indicates collision in less than six minutes

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單項(xiàng)選擇題

A marker pole，with a horseshoe buoy and a sea anchor attached，should be used to （）.

A.mark the position of a lost mooring
B.determine your vessel's sideslip underway
C.determine your speed through the water
D.indicate location of a man overboard

單項(xiàng)選擇題

（）objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility．

A.Conspicuous
B.Permanent
C.Preliminary
D.Temporary

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A stand-on vessel in a crossing situation is allowed to take action when （）.

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A marker pole，with a horseshoe buoy and a sea anchor attached，should be used to （）.

（）objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility．

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A marker pole，with a horseshoe buoy and a sea anchor attached，should be used to （）.