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單項(xiàng)選擇題

The use of（）between bags may lead to chafage and tearing of the bags.

A.strips of burlap
B.heavy paper
C.dunnage boards
D.strips of rope yarm

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單項(xiàng)選擇題

The valves（）S/0 No.187 is not shown in the plan.

A.below
B.in
C.of
D.under

單項(xiàng)選擇題

To improve your vessel’s stabilty in a hazardous situation, you should（）.

A.ballast deep tanks if they are slack
B.transfer ballast athwarships
C.pump out double bottoms
D.fill double bottom from deep tanks

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