單項(xiàng)選擇題

For cargoes（）grain meals,coal,ventilation is needed to prevent them（）spontaneous combustion.

A.i.e./of
B.for instance/away
C.for example/off
D.such as/from

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單項(xiàng)選擇題

For determining the amount of chains used in anchoring operation,which one of the following factors wouldn’t be considered?（）.

A.selection of landmarks
B.character of sea bottom
C.strength of current and wind force
D.radius of ship swing to wind or tide

單項(xiàng)選擇題

For small angles of inclination,if the KG were equal to the KM,then the vessel would have（）.

A.positive stability
B.negative stability
C.neutral stability
D.maximum stability