单项选择题
Electrical wiring on all “T-Boats” must be（）。
A.concealed to prevent mechanical damage
B.concealed so the boat can be maintained more easily
C.protected from the weather
D.in an accessible place behind the ceiling
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Damage to another vessel’s cargo，caused by a collision，is covered under which marine insurance policy?（）.
A.Hull
B.Fire
C.Protection and Indemnity
D.None of the above -
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Carbon dioxide as a fire fighting agent has which advantage over other agents? （）
A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
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Before sailing for a foreign port，what document must you get?（）.
A.The Policy of insurance
B.The Report of Entrance
C.The Clearance
D.The Pratique
