（）is the tendency of a vessel to retur

1、（）refers to the tendency of a body of

（）refers to the tendency of a body of the ship to return to its original position after it is displaced therefrom.AStabilityBResponsibilityCLiabilityDVisibility

2、THE SPEED OF A VESSEL ADJUSTED TO THAT

THE SPEED OF A VESSEL ADJUSTED TO THAT OF A PILOT BOAT AT WHICH THE PILOT CAN SAFELY EMBARK is （）.AGround speedBBoarding speedCRelative speedDSpeed of the vessel

3、The stability of a vessel is normally

The stability of a vessel is normally the greatest when all fuel and water tanks are full because the （）.Acenter of gravity is loweredBcenter of buoyancy is loweredCreserve buoyancy is unchangedDhull freeboard is increased

4、The notice of casualty to a vessel mus

The notice of casualty to a vessel must include（）.Aa request for assistanceBthe location of the unit at the time of the casualtyCan estimate of the cost to repair damagesDthe amount of fuel remaining

5、A vessel not to impede the passage of

A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.AonBofCinDfor

6、The tendency of a vessel to return to

The tendency of a vessel to return to its original trim after being inclined by an external force is（）.AequilibriumBbuoyancyCtransverse stabilityDlongitudinal stability