When a vessel violates an oil pollution act，who may be held responsible?（）.

A . position will automatically be sent B . position will only be sent if the vessel is making a distress call C . MMSI will indicate its ocean region D . None of the above

A . she can be observed by radar B . she can be observed visually from the other vessel C . she can be plotted on radar well enough to determine her heading D . her fog signal can be heard

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

A . Master only B . Owners only C . Licensed officers only D . Any individual connected with the vessel involved in the operatio

A . has no more than two compartments B . has two compartments in addition to the engine room C . will sink if any two compartments are flooded D . will float if any two adjacent compartments are flooded

A . discharging B . recircling C . loading D . taking i

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

A . the masthead lights for a towing vessel B . the lights for a vessel restricted in its ability to maneuver C . sidelights，stern light and towing light D . All of the above

A . remove their life preservers to make it easier to climb on board the rescue vessel B . climb on top of the boat while waiting for their turn to transfer to the rescue vessel C . remain seated inside and make the transfer one person at a time D . enter the water and swim over to the rescue vessel

A . 正确 B . 错误

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 . down by the head B . down by the stern C . inclined due to off-center weight D . inclined due to wind

A . Only the stern light of the vessel B . One sidelight and a masthead light of the vessel C . Only a sidelight of the vessel D . The masthead lights of the vessel

A、cross the channel as you are the stand-on vessel B、cross only if the vessel in the channel is approaching on your port side C、not cross the channel if you might impede the other vessel D、sound the danger signal

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 . Can always rely on a buoy to be on station B . Can always rely on a buoy to show proper light characteristics C . Should assume a wreck buoy is directly over the wreck D . Should never rely on a floating aid to maintain its exact positio

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

A . protect （drop packets with unknown source addresses） B . restrict （increment SecurityViolation counter） C . shut down （access or trunk port） D . transition （the access port to a trunking port）

A . pelican hook B . connecting link C . shackle D . retaining hook

A . wind direction remains steady B . wind speed increases C . barometer falls D . All of the above

A . A．DDU　　 B . B．FCA C . C．FOB　　 D . D．CIF

A . it is overtaken by the tow B . it is pulled sideways by the tow C . the weight of the towing hawser causes loss of maneuverability D . the propeller is fouled by the towing hawser

A . should not be regarded as a vessel constrained by her draught B . should be regarded as a vessel constrained by her draught C . shall be regarded as a vessel restricted in her ability to maneuver D . should be regarded as a non-displacement vessel