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單項(xiàng)選擇題

Permission is requested to pump out about 200 tons of clean sea ballast water for （） purposes．

A.safe manning
B.trimming
C.avoiding collision
D.preventing pollution

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單項(xiàng)選擇題

Permission is kindly （） about 1000 tons of clean sea water ballast，as and when required for trimming purposes．

A.requested to pump out
B.requested pumping out
C.requesting to pump out
D.requesting pumping out

單項(xiàng)選擇題

Once vessel has been cleared by Port Health or Immigration （）must proceed to appropriate berth or anchorage．

A.It
B.she
C.he
D.the vessel

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