單項(xiàng)選擇題

The purpose of a bilge well is to（）.

A.afford access to the shell through the double bottoms
B.collect water to be pumped out
C.provide access for the pneumercator
D.provide a base line for sounding measurements

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單項(xiàng)選擇題

The portable radio apparatus means（）.

A.the radio apparatus fitted on the portside
B.the radio with a portable equipment
C.the radio equipment which is easily movable
D.the portable radio with some apparatus

單項(xiàng)選擇題

The most common type of davit found on merchant vessels today is the（）.

A.radial
B.sheath-screw
C.gravity
D.quadrantal