An undocumented vessel with 10 people aboard and operating 25 miles off the seacoast must carry a survival craft of the（）.

A . apparent wind speed only B . true wind speed and true wind direction C . true wind speed only D . apparent wind speed and true wind directio

A . waterline B . freeboard deck C . Plimsoll mark D . amidships sectio

A . Certificate of Inspection B . Official Log C . Certificate of Documentation D . Shipping Article

A . righting arm B . metacentric height C . height of the uncorrected KG D . natural rolling period

A . A sternlight only B . Anchor lights only C . A white light over a red light only D . A white light over a red light and anchor light

A . lower than the center of gravity B . at the same height as the center of gravity C . higher than the baseline D . on the longitudinal centerline

A . waterline B . freeboard deck C . plimsoll mark D . amidships sectio

A . speed begins to drop B . stops C . receives ice damage D . becomes icebound

A . I require a pilot B . Longitude follows C . I am going ahead; follow me D . Do not follow me

A . Certificate of Documentation B . Certificate of Inspection C . Operators Merchant Marine license D . FCC Station License

A . those with diesel engines B . all those with gasoline engines C . those with large engines only D . None of the above

A . Master only B . Owners only C . Licensed officer on watch D . Any individual connected with the vessel

A . admeasure over 100 GT B . be 79 or more feet in length C . engage in intercoastal or international trade D . be issued a Certificate of Inspectio

A . None B . One C . Two D . Three

A . The required oily-water separator malfunctions B . The ship is transferred to Liberian registry C . An annual survey is conducted fifteen months after the date of certificate issuance D . A 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator

A . aid turing the ship B . obtain a fine bearing C . increase ship swing to wind or tide D . lighten the stress of anchor chai

A . underway，but not making way B . aground C . being towed D . not engaged in pilotage duty

A . readily accessible B . securely stowed C . stored in sealed containers D . stowed with the emergency provisio

A . aid turning the ship B . obtain a fine bearing C . increase ship swings to wind or tide D . lighten the stress of anchor chai

A . lower than the center of gravity B . at the same height as the center of gravity C . heigher than the baseline D . on the longitudinal centerline

A . shape of the vessel's underwater hull remains the same B . vessel's center of gravity shifts to the center of the vessel's underwater hull C . vessel's center of buoyancy shifts to the center of the vessel's underwater hull D . vessel's mean draft increase

A、generally steady bearing and decreasing range B、generally steady range and increasing bearing C、 increasing range and bearing D、decreasing bearing only

A . list to stabilize at an angle of loll B . trim to stabilize at an angle of loll C . trim to increase D . trim to decrease

A . tradition B . transportation C . transmission D . transformatio