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單項選擇題

What does salt water draft mean?（）.

A.It means summer draft
B.It means maximum draft
C.It means fresh water draft
D.It means seawater draft

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單項選擇題

What does the abbreviation SWL stand for?（）.

A.Signal wave letters
B.Ship without light
C.Safe water line
D.Safe working load

單項選擇題

What time can I（）the canal?

A.enter
B.enter in
C.enter to
D.enter into

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