Flooding of any compartment in a ship that results in a serious loss of reserve buoyancy will always（）.

A . re-adjust the discharge pressure B . clean the expansion valve screen C . add refrigerant D . adjust the expansion valve

A . first B . following control of fire C . following restoration of vital services D . only if a threat exist

A . are B . is C . was D . were

A . flashing point B . combustion point C . auto-ignition point D . lower explosive limit

A、injection valve B、relief valve C、discharge valve D、inlet filter

A . Fire party B . Deck cadets C . Research team D . Damage control team

A . increase the righting moment B . cause an increase in the righting arm C . bring the unit to an upright equilibrium position D . cause the unit to flop to a greater angle

A . close the cross-connection valve between the off-center tanks B . completely flood high center tanks C . ballast double bottom wing tanks D . close any opening to the sea in an off-center tank

A . connections between forebody and afterbody are most crucial B . of maximum longitudinal bending moments C . of severest racking stresses D . resistance to grounding is at a maximum amidshi

A . break glass，pull valve，break glass，pull cylinder control B . sound evacuation alarm，pull handle C . open bypass valve，break glass，pull handle D . open stop valve，open control valve，trip alarm

A、overtaking／overtaken B、being overtake／being overtaken C、overtaking／being overtaken D、being overtaking／overtaken

A . If B . Shall C . Should D . Whether

A . Place unused ports in a common VLAN. B . Implement private VLANs. C . Implement DHCP snooping. D . Implement port security. E . Implement VLAN access maps.

A . submerged hulls B . column void spaces C . dry mud tanks D . ballast tank

A . nearby damaged tanks B . nearby undamaged tanks containing ballast C . tanks on the opposite corner D . the opposite trim tank

此题为判断题(对，错)。

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With nearly a third of the country already covered by water and half of its land mass below sea level and constantly under threat from rising waters, the authorities believe that floating communities may well be the future. Six prototype wooden and aluminum floating houses are already attached to something off Amsterdam, and at least a further 100 are planned on the same estate, called Ijburg "Everybody asks why didn't we do this kind of thing before," said Gijsbert Van der Woerdt, director of the firm responsible for promoting the concept. "After Bangladesh we're the most densely populated country in the world. Building space is scarce and government studies show that we'll need to double the space available to us in the coming years to meet all our needs." Before being placed on the water and moved into position by tugboats (拖船), the houses are built on land atop concrete flat-bottomed boats, which encase giant lumps of polystyrene (聚苯乙烯) reinforced with steel. The flat-bottomed boats are said to be unsinkable and are anchored by underwater cables. The floating roads apply the same technology. The concept is proving popular with the Dutch. "The waiting list for such homes, which will cost between euros 200,000-500,000 to buy, runs to 5,000 names," claims Van der Woerdt. With much of the country given over to market gardening and the intensive cultivation of flowers, planners have also come up with designs for floating greenhouses designed so that the water beneath them irrigates the plants and controls the temperature inside. A pilot project, covering 50 hectares of flooded land near Amsterdam's Schiphol airport, is planned for 2005. The opportunities for innovative developers look promising. "We have 10 projects in the pipeline- floating villages and cities complete with offices, shops and restaurants," Van der Woerdt said. The Netherlands plans to start building floating communities on water because ______ A．most parts of the country are covered by water B．the country is constantly threatened by floods C．it will promote the cultivation of flowers D．people think it better to live on water

A．Y B．N C．NG

A．one B．the one C．that D．it