A vessel crossing a river on the Western Rivers has the right of way over（）.

A . hold your course and speed B . sound the danger signal C . begin an exchange of passing signals D . do not cross the channel if you might impede the other vessel

A . toward the inside of the bend B . toward the outside of the bend C . toward the center of the river just before the bend，then change course for the river's center after the bend D . in the river's center

A . not under command B . restricted in her ability to maneuver C . engaged in towing D . fishing

A . at small angle B . at large angle C . at right angle D . in same direction a

A . take action to cross ahead of the other vessel B . take action to pass astern of the other vessel C . maintain course and speed D . change course and increase speed

A . is holding course and speed B . is turning to starboard C . intends to pass port to port D . will keep out of the way of the stand-on vessel

A . When a risk of collision exists B . When action by the give-way vessel alone will not prevent a collision C . When the bearing to give-way vessel becomes steady D . When the vessels become less than 1/2 mile apart

A . The vessel moving upstream against the current B . The vessel moving downstream with a following current C . The vessel located more towards the channel centerline D . The vessel with the least amount of maneuverability

A、take avoiding action immediately upon determining that risk of collision exists B、immediately sound the danger signal C、take avoiding action only after providing the give-way vessel time to take action ,and determining that her action is not appropriate D、 hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avert collision

A . apply the relevant Steering and Sailing Rules as a power-driven vessel B . apply the relevant Steering and Sailing Rules as a Sailing vessel C . apply the relevant Steering and Sailing Rules as a vessel not under command D . apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operatio

A . mile board B . dredging mark C . passing daymark D . crossing daymark

A . turning to port B . turning to starboard C . decreasing speed D . increasing speed

A . including B . inclusive of C . except that D . other tha

A . Cross ahead of the stand-on vessel B . Make a large course change to starboard C . Slow your vessel D . Back your vessel

A . on a collision course B . the vessels will pass within one mile C . it becomes apparent to her that the give-way vessel is not taking appropriate action D . the relative speed of the vessels indicates collision in less than six minute

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、 Both vessels B、 Neither vessel C、The vessel on portside D、  The vessel on starboard side

A . The plane is in distress and will have to ditch B . The plane is going to drop a package and wishes the vessel to recover it C . Someone is in distress in that direction and the vessel should follow and assist D . There is danger ahead and the best course is indicated by the direction of the aircraft

A . Yours is the give-way vessel because it is less than 30 meters long B . You shall not impede the safe passage of the tanker C . The tanker is the stand-on vessel because it is to port of your vessel D . The tanker is the stand-on vessel because it is the larger of the two vessel

A．take avoiding action immediately upon determining that risk of collision exists B．immediately sound the danger signal C．take avoiding action only after providing the give-way vessel time to take action, and determining that her action is not appropriate D．hold course and speed until the point of e

A．Boats used on rivers were extremely crowded. B．The current was too swift for boats to cross easily. C．Bridges were too weak to carry the weight of a stagecoach. D．Ferry service was infrequent.

A:A; B:B; C:C; D:D