In the navigational triangle，the angle at the elevated pole is the（）.

A . for precise navigation in coastal waters B . by measuring the phase difference of the dots and dashes C . as an aid to ocean navigation D . if the vessel is fitted with a special Consol receiver

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 . notify the master immediately B . take whatever action is necessary before the master arrives C . take necessary actions at his/her discretion D . seek clarification from the pilot

A . take all her way off B . take her way all off C . take her way off D . take off her all way

A . it B . that C . this D . so

A . station the look-out in the wheelhouse to keep a continuous watch on the radar B . secure the sounding of fog signals until a vessel closes within five miles C . station a look-out as low down and far forward as possible D . keep the radar on the shortest available range for early detection of approaching vessel

A . navigating with a low diesel engine speed B . navigating with a stable diesel engine speed C . increasing the efficiency of propeller D . increasing fuel injectio

A . Anchoring in the presence of ice is not recommended except in an emergency B . Towing a vessel through an ice field is not recommended except in an emergency C . The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations D . When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditio

A . ECDIS B . RADAR C . GPS D . GMDSS

A . satisfies B . incurs C . occurs D . contai

A . stopping the main engine suddenly B . changing the main engine running direction suddenly C . the sailing from the shallow water area to the deep water area D . the ship’s trim too much

A . cleaning fuel oil, lubricating oil and seawater filter B . reducing fuel feeding of the main engine appropriately or reducing the pitch angle of propeller C . using low sea chest D . closing the skylight and the ventilation opening, which doesn’t affect the normal work of equipment

A . A backing wind B . A veering wind C . Sustained gale force winds D . A strong wind that maintains a constant speed and directio

A . the stopping engine suddenly B . the sailing astern and changing direction suddenly C . the sailing from the shallow water area to the deep water area D . the ship’s trim too much

A . Deep Flood B . Direction Finder C . Double Freeboard D . Dangerous Fertilizer

A、 there is reason to believe that the latter is not capable of carrying out the watch keeping duties effectively B、 the ship is fitted with automatic steering C、 there is daylight or darkness D、 at no time shall the bridge be left unattended

A . be watched B . be seen C . be viewed D . be inspected

A.Setting nets B.Trawling C.Using a dredging net D.Trolling

A.the stopping engine suddenly B.the sailing astern and changing direction suddenly C.the sailing from the shallow water area to the deep water area D.the ship’s trim too much

It is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the Canal，and Master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety． Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area.Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation． 问题：PILOT HOUSE is referred to ______ in this passage． A.the cabin in which the pilot stays B.the space in which the rudder is located C.the bridge of vessels D.the cabin which is prepared for the pilot SHIPPING is referred to ______ in this passage．A.he operations of transportation of goods by sea B.the procedures of marine transportation business C.the management of marine transportation business D.the vessels and ships The author implies that ______ ．A.even by making use of modern instrument it is difficult to maintain safety in this area B.mariners should take it easy when navigating in this area C.modern instrument should be used to control the safety of navigation in this area D.it is dangerous when navigating in this area The person on the bridge or in the pilot house shall be those ______ ．A.who are recommended B.who are familiar with the navigation，management，operation and safety control C.who are directly involved in the navigation，management，operation and safety control D.who have nothing to do with the navigation，management，operation and safety control

A．4-8 B．8-12 C．12-4 D．0-8