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單項(xiàng)選擇題

（）refers to the angle between true North and heading line of the vessel.

A.True position
B.True meridian
C.True course
D.True bearing

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單項(xiàng)選擇題

（）the incomplete nature of the survey ,heavy draught vessels warned not to navigate within the 10 fathom line.

A.Because
B.Owing to
C.Having been
D.Being

單項(xiàng)選擇題

（）the survivors known more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives（）.

A.Have/could have been saved
B.Have/could have saved
C.Had/could has saved
D.Had/could have been saved

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