單項選擇題

Mariners must ascertain that deck loads are stowed in such a manner as（）.

A.to affect the vessel's stability
B.not to affect the vessel's stability
C.to keep the vessel on even keel
D.not to keep the vessel on even keel

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單項選擇題

Mariners not entering the port are（）to keep at least one mile off.

A.advised
B.reported
C.complied
D.supplied

單項選擇題

Masts and derricks of cargo ships are made of（）.

A.steel
B.copper
C.bross
D.zinc

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