A floating vessel will behave as if all of its weight is zcting downward through the（）.

A . average of the observed drafts B . draft at the centre of flotation C . draft corresponding to the center of buoyancy D . metacentric height

A . be tender B . have a quick and easy motion C . be stiff D . yaw

A . a black ball B . a diamond shape C . two cones，apexes together D . one cone，apex upward

A . have more resistance to listing in case of damage B . have less tendency to have synchronous rolling C . be less likely to have cargo shift D . ride more comfortably

A . American Consul B . Classification Society C . Captain of the Port D . Officer in Charge，Marine Inspectio

A . move to port B . move to starboard C . move directly down D . stay in the same positio

A . reflect B . shown C . detected D . defected

A . be tender B . have a slow and easy motion C . be stiff D . have a tendency to yaw

A . number of licensed personnel required on board B . maximum load line draft C . maximum water depth for drilling D . next date for an inclining experiment

A . three balls in a vertical line B . two balls in a vertical line C . one ball near the foremast and one ball at each fore yard D . one diamond near the foremast head and one ball at each fore yard

A . heel until the angle of loll is reached B . list until the center of buoyancy is aligned vertically with the center of gravity C . trim to the side opposite TCG until all moments are equal D . decrease draft at the center of flotatio

A . be tender B . have a slow and easy motion C . be stiff D . have a tendency to yaw

A . only when there is positive stability B . only when there is negative stability C . only when there is neutral stability D . at all time

A . aboat which the vessel lists and trims B . which coincides with the center of buoyancy C . which, in the absence of external forces, is always vertically aligned with the center of gravity D . which is shown in the hydrostatic tables as VCB

A . move to port B . move to starboard C . move directly down D . stay in the positio

A . be more subject to synchronous rolling B . have a short rolling period C . procide an uncomfordtable ride for personnel D . have a smaller amplitude of roll in heavy weather

A . Moving high weights lower B . Adding weight at the tipping center C . Moving a weight forward D . Moving lower weight high

A . average of the observed drafts B . draft at the center of flotation C . draft corresponding to the calculated displacement D . mean of the calculated draft

A . center of buoyancy B . center of flotation C . uncorrected height of the center of gravity of the vessel D . center of gravity of the vessel corrected for free surface effect

A . black B . red C . orange D . yellow

A . metacenter B . amidships C . center of flotation D . geometric center of the displaced volume

A、The day before the reset date. B、The day after the reset date. C、never--floating-rate securities have a duration of zero.