单选题The rules state that vessels may depart from the requirements of the Rules when（）.A there are no other vessels aroundB operating in a narrow channelC the Master enters it in the ship's logD necessary to avoid immediate danger

Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the ______．

A.International Cargo Bureau Regulations

B.Load Line Regulations

C.Rules and Regulations for Cargo and Miscellaneous Vessels

D.Vessel's classification society rules and regulations

材料：

This insurance also covers the insured vessel&39;s proportion of general average，salvage or salvage charges，but in case of general average sacrifice of the vessel，the Insured may recover fully for such loss without obtaining contributions from other parties．

General average shall be adjusted in accordance with the relative contract and governing law and practice．However，where the contract of affreightment or carriage does not so provide，the adjustment shall be made according to the Beijing Adjustment Rules or similar provisions of other rules． Where all the contributing interests are owned by the Insured，or when the insured vessel sails in ballast and there are no other contributing interests the provisions of the Beijing Adjustment Rules（excluding Article 5），or similar provisions of other rules if expressly agreed，shall apply as if the interests were owned by different persons．

The voyage for this purpose shall be deemed to continue from the port or place of departure until the arrival of the vessel at the first port or place of call thereafter other than a port or place of refuge or a port or place of call for bunkering only．If at any such intermediate port or place there is an abandonment of the adventure originally contemplated the voyage shall thereupon be deemed to be terminated.

问题：

In the event of general average sacrifice of the insured vessel，the insured ______．

A.can only recover the insured vessel’s proportion from the Insurer

B.should recover fully for such loss by obtaining contributions from the other parties

C.may recover fully for such loss from the Insurer prior to his obtaining the contributions from other parties

D.shall own all the contributing interests

General average adjustment shall be made according to the Beijing Adjustment Rules or similar provisions of other rules if _____．A.the relative contract does not provide according to which law and practice the adjustment shall be made

B.the contributing interests are owned by different persons

C.the contract of affreightment or carriage requires that some other governing law be followed

D.there is a sacrifice of the insured vessel

If the insured vessel sails in ballast and there are no other contributing interests，______．A.the general average adjustment shall be made according to the relative contract of carriage

B.all the provisions of Beijing Adjustment Rules shall be applied in case of any general average

C.no general average adjustment is needed

D.the general average shall be adjusted as if there were different contributing interests according to the provisions of Beijing Adjustment Rules

The word“contemplated”in the last paragraph of this passage means _____．A.“looked at”

B.“intended”

C.“contended”

D.“meditated”

请帮忙给出每个问题的正确答案和分析，谢谢！

Navigation lights must be displayed in all weathers from sunset to sunrise. They also _____.

A.must be displayed when day signals are being used

B.must be displayed when moored to a pier

C.may be extingushed at night on open waters when no other vessels are in the area

D.may be displayed during daylight

What is NOT a requirement of cargo piping installed in tank vessels carrying grade D or E cargo ONLY ________．

A.The cargo piping system shall be fixed

B.Flanged joints shall be used for pipe sizes exceeding 2 inches in diameter

C.Piping through bunker spaces may be run through a pipe tunnel

D.Connections at bulkheads must be made so that the plating does not form part of a flanged joint

In which situation do the Rules require both vessels to change course ?______.

A.Two power-driven vessels meeting head-on

B.Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action

C.Two sailing vessels crossing with the wind on the same side

D.All of the above

Vessels to which Annex V to MARPOL 73/78 applies may discharge garbage containing plastics ______.

A.5 nautical miles from nearest land

B.12 nautical miles from nearest land

C.25 nautical miles from nearest land

D.None of the above