單項(xiàng)選擇題

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
D.It is most effective on a per unit basis

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

Before leaving port on an ocean tow，a tug captain should assure himself of all the following EXCEPT（）.

A.the towing hawser can be released quickly in an emergency
B.the correct navigation lights are rigged and operable on the tug and tow
C.an insurance underwriter has prepared a pre-sailing survey
D.a pick-up wire has been rigged on the tow in case of a breakaway

Carbon dioxide as a fire fighting agent has which advantage over other agents? （）

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Before sailing for a foreign port，what document must you get?（）.

Before leaving port on an ocean tow，a tug captain should assure himself of all the following EXCEPT（）.

Before sailing for a foreign port，what document must you get?（）.

Before leaving port on an ocean tow，a tug captain should assure himself of all the following EXCEPT（）.