A、subject for
B、liable to
C、easy to meet
D、always encounter
更多“Ships at sea are in urgent need of MSI because they are（）various kinds of danger.”相关的问题
A、International Maritime Dangerous Goods Carried by Sea B、International Code for the Construction and Equipment of Ships Carrying Gases in Bulk C、International Convention for the Safety of Life at Sea D、International Regulations for Preventing Collisions at Sea
A、International Maritime Dangerous Goods Carried by Sea B、International Code for the Construction and Equipment of Ships Carrying Gases in Bulk C、International Convention for the Safety of Life at Sea D、International Regulations for Preventing Collisions at Sea
A、all ships in a large sea area B、only the sea authorities ashore C、the SAR units ashore and at sea D、the port radios and the coast stations
A、can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers B、are indistinguishable from sea return on the PPI C、are invisible to radar when covered with a thick layer of snow D、are usually seen at night before they are close enough to provide a radar echo
A、at high speed and full load B、at low speed and part load C、when heavy fuel oil is used at sea D、when the ships run long distance
A、A.Icebergs may travel in a direction many degrees different from the sea ice B、B.Both icebergs and sea ice will move in approximately the same direction and at the same speed C、C.Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the berg D、D.Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
A、A.all large passenger vessels B、B.freighters of more than 300gt in coastal waters C、C.all passenger ships and cargo ships engaged in international-voyages D、D.all passenger ships and cargo ships of 300gt upwards in open sea
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