单选题Every vessel should at all times proceed at a safe speed. Safe speed is defined as that speed where（）.A you can stop within your visibility rangeB you can take proper and effective action to avoid collisionC you are traveling slower than surrounding ve

In dense fog a vessel without operational radar may not be justified ________ at all but should anchor if it is safe and practicable for her to do so．

A.to be underway

B.on under way condition

C.to stop engine

D.in being under way

On no account ______ proceed without pilot in this water area．

A.the vessel

B.shall not vessel

C.the vessel should

D.should vessel

[ ] During negotiations, one should treat an opponent with respect and considerationat all times.

You are anchoring in 16 fathoms of water．On a small to medium size vessel，the ______．

A.Anchor may be dropped from the hawse pipe

B.Anchor should be lowered to within 2 fathoms of the bottom before being dropped

C.Scope should always be at least ten times the depth of the water

D.Scope should always be less than 5 times the depth of the water

材料：If，by reason of or in compliance with any such directions or recommendations，the vessel does not proceed to the port or ports named in the Bill of Lading or to which she may have been ordered pursuant thereto，the Vessel may proceed to any port as directed or recommended or to any safe port which the Owners in their discretion may decide on and there discharge the cargo．Such discharge shall be deemed to be due fulfillment of the contract of affreightment and the Owners shall be entitled to freight as if discharge had been effected at the port or ports named in the Bill of Lading or to which the Vessel may have been ordered pursuant thereto．

问题：If the vessel does not, under the directions of the Charterer, proceed to the port or ports named in the Bill of Lading or to which she may have been ordered pursuant thereto to, she may proceed to all the following ports except ______ ．

A.any port as directed

B.any port as recommended

C.any safe port which the Owners in their discretion may decide on

D.the port or ports of origin

At the substituted port, the carrier is entitled to ______ freight if he had dilivered full cargo there．A.full freight

B.half freight

C.no freight

D.reasonable freight

The contract of affreightment is referred to ______ ．A.a contract of carriage by which the carrier is entitled to carry certain amount of cargo in a specified time by any vessel or vessels either belonging to himself or to others

B.a contract of carriage, such as Gencon

C.a contract of trade

D.a contract of sales

This is a ______ ．A.a clause of a contract

B.an explanation of a clause in a contract

C.a requirement from a government

D.an article of an international convention

请帮忙给出每个问题的正确答案和分析，谢谢！

The Owners guarantee that the Vessel to be at all times _______ valid and up-to-date certificates to comply with such regulations in every respect．

A.in stead of

B.in lieu of

C.in possession of

D.in place of

Paints and solvents on a vessel should be ______.

A.stored safely at the work site until work is completed

B.returned to the paint locker after each use

C.covered at all times to protect from ignition sources

D.stored in a suitable gear locker

Every vessel should at all times proceed at a safe speed.Safe speed is defined as that speed where ______.

A.no wake comes from your vessel

B.you can stop within your visibility range

C.you can take proper and effective action to avoid collision

D.you are traveling slower than surrounding vessels