單項(xiàng)選擇題All the expenses are()the ship’s account.

A.of
B.for
C.to
D.at


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1.單項(xiàng)選擇題All the copper bars are()different sizes.

A.at
B.in
C.by
D.from

2.單項(xiàng)選擇題A vessel transferring provisions or cargo at sea shall display during the day().

A.two black balls in a vertical line
B.three black balls in a vertical line
C.three shapes in a vertical line; the highest and lowest shall be red balls and the middle a white diamond
D.three black shapes in a vertical line; the highest and lowest shall be balls and the middle one a diamond

3.單項(xiàng)選擇題A vessel engaged in replenishment or transferring persons,provisions or cargo while under way can be regarded as().

A.a vessel restricted in her ability to maneuver
B.a vessel engaged in laying,serving or picking up a navigation mark,submarine cable or pipeline
C.a vessel not under command
D.a power-driven vessel

4.單項(xiàng)選擇題A hydraulic accumulator is designed to().

A.store fluid under pressure
B.act as a fluid reservoir
C.provide overpressure relief
D.replenish fluid to a system

5.單項(xiàng)選擇題A fishing vessel that is required to have a fireman’s outfit,must have all of the following in the outfit except a().

A.flashlight
B.combustible gas indicator
C.self-contained breathing apparatus
D.fire axe