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單項(xiàng)選擇題

0il product samples should be taken from the（）.

A.dock riser
B.ships cargo tanks
C.shore tank discharge
D.All of the above

單項(xiàng)選擇題

0n a single-screw vessel the stern frame（）.

A.furnishes support to the rudder, propeller shaft, and transom frame
B.provides foundations for after mooring winches
C.provides foundation for the main propulaion engines
D.transfers the driving force of the propller to the hull

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0f the general methods of stowing bagged cargo, which allows maximum ventilation?（）.

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0il product samples should be taken from the（）.

0n a single-screw vessel the stern frame（）.